WO2020220542A1 - Ardealite self-leveling mortar, and preparation method therefor and application thereof - Google Patents

Ardealite self-leveling mortar, and preparation method therefor and application thereof Download PDF

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WO2020220542A1
WO2020220542A1 PCT/CN2019/103405 CN2019103405W WO2020220542A1 WO 2020220542 A1 WO2020220542 A1 WO 2020220542A1 CN 2019103405 W CN2019103405 W CN 2019103405W WO 2020220542 A1 WO2020220542 A1 WO 2020220542A1
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weight
parts
phosphogypsum
self
leveling mortar
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PCT/CN2019/103405
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French (fr)
Chinese (zh)
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朱清玮
雷月
王苗苗
白风华
肖文韬
李帆
陈红霞
杨正波
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中建材创新科技研究院有限公司
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Priority to CN201910354093.0A priority Critical patent/CN111606647A/en
Priority to CN201910354354.9 priority
Priority to CN201910354142.0A priority patent/CN111606648A/en
Priority to CN201910354093.0 priority
Priority to CN201910354143.5 priority
Priority to CN201910354143.5A priority patent/CN111606649A/en
Priority to CN201910354354.9A priority patent/CN111606651A/en
Priority to CN201910354142.0 priority
Application filed by 中建材创新科技研究院有限公司 filed Critical 中建材创新科技研究院有限公司
Publication of WO2020220542A1 publication Critical patent/WO2020220542A1/en

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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements

Abstract

An ardealite self-leveling mortar, and a preparation method therefor and an application thereof. The preparation raw materials comprise ardealite and solid waste, and do not comprise cement. The solid waste is selected from any one or more of red mud, papermaking white mud, and steel slag. The preparation method comprises: mixing the ardealite with the solid waste, calcining, and ball milling; and mixing the ball-milled ardealite and the solid waste with aggregate, a retarder, a defoamer, a water-retaining agent, a water reducing agent, redispersible latex powder, and an optional thermal conductive material. By adding the ardealite and the solid waste in the ardealite self-leveling mortar, no cement needs to be added and the solid waste can be recycled. The raw material costs of the self-leveling mortar are reduced. The self-leveling mortar having good thermal conductive performance is prepared for filling gaps between floor heating pipes and an upper layer surface.

Description

一种磷石膏自流平砂浆及其制备方法和应用A kind of phosphogypsum self-leveling mortar and its preparation method and application 技术领域Technical field
本申请涉及无机建筑材料领域,尤其涉及但不限于一种磷石膏自流平砂浆及其制备方法和应用。This application relates to the field of inorganic building materials, in particular to but not limited to a phosphogypsum self-leveling mortar and its preparation method and application.
背景技术Background technique
石膏建筑材料具有安全、舒适、快速、环保等特点,已成为世界公认的、在发达国家广泛使用的绿色环保建筑材料。然而,天然石膏矿产作为一种不可再生的资源,随着大规模工业化的发展而大量消耗,化学石膏正逐步取代天然石膏被广泛应用于石膏建材中。但近年来,脱硫石膏的应用技术的成熟和应用领域的扩展,致使其资源也开始紧缺。磷石膏是磷酸生产中产生的一种工业副产石膏,其产生量在快速地增加,是未来一种重要的石膏替代资源,也将是未来石膏建材的重要原料。Gypsum building materials are safe, comfortable, fast, and environmentally friendly, and have become a world-recognized green building material widely used in developed countries. However, as a non-renewable resource, natural gypsum minerals are consumed in large quantities with the development of large-scale industrialization. Chemical gypsum is gradually replacing natural gypsum and is widely used in gypsum building materials. However, in recent years, the maturity of the application technology of desulfurization gypsum and the expansion of application fields have caused its resources to become scarce. Phosphogypsum is an industrial by-product gypsum produced in the production of phosphoric acid, and its production is rapidly increasing. It is an important gypsum substitute resource in the future and an important raw material for gypsum building materials in the future.
自流平砂浆是一种新型的地面砂浆材料,其能够借助流体流动的特点自动找平,并快速干燥,相比于人工地面找平工艺节省了材料及人工,缩短了施工工期。在人力成本不断高涨的时代,自流平砂浆在经济性方面更具竞争力。若能以固体废弃物磷石膏为主要原料,生产自流平砂浆,在原料成本上也将得到极大的节省,因此可进一步提高自流平砂浆的市场竞争力。Self-leveling mortar is a new type of ground mortar material, which can automatically level with the characteristics of fluid flow and dry quickly. Compared with the artificial ground leveling process, it saves materials and labor and shortens the construction period. In the era of rising labor costs, self-leveling mortar is more economically competitive. If the solid waste phosphogypsum can be used as the main raw material to produce self-leveling mortar, the cost of raw materials will also be greatly saved, so the market competitiveness of self-leveling mortar can be further improved.
地面辐射供暖(地暖)系统具有热稳定性能好、节能高效、安全性能高、不占用室内面积等优点,近年来正逐渐取代传统的壁挂式采暖方式,在住宅建筑中逐步得到普及应用,具有广阔的市场。地暖管道间隙填充及上层覆面需要地坪砂浆材料,而自流平砂浆材料可以借助流体流动的特点自动找平,快速干燥,节材省工。同时,为了保证供暖效率,地暖管道间隙填充及上层覆面材料需要具有良好的热导性。Ground radiant heating (floor heating) system has the advantages of good thermal stability, energy saving and high efficiency, high safety performance, and does not occupy indoor area. In recent years, it is gradually replacing the traditional wall-mounted heating method and is gradually gaining popularity in residential buildings. Market. Floor mortar materials are required for gap filling and upper cladding of floor heating pipes, and self-leveling mortar materials can be automatically leveled with the help of fluid flow characteristics, fast drying, saving materials and labor. At the same time, in order to ensure heating efficiency, the gap filling of floor heating pipes and the upper cladding material need to have good thermal conductivity.
若能以资源丰富的固体废弃物磷石膏代替水泥,来生产能够用于地暖管道间隙填充及上层覆面的导热石膏自流平砂浆,将极大地节省地暖系统的原料成本和消纳磷石膏这种固体废弃物,经济与社会效应明显。然而,目前还未见有采用磷石膏代替水泥来生产导热石膏自流平砂浆的报道。If the resource-rich solid waste phosphogypsum can be substituted for cement to produce a thermally conductive gypsum self-leveling mortar that can be used for floor heating pipeline gap filling and upper cladding, it will greatly save the raw material cost of the floor heating system and absorb the solid phosphogypsum Waste has obvious economic and social effects. However, there is no report of using phosphogypsum instead of cement to produce thermally conductive gypsum self-leveling mortar.
发明概述Summary of the invention
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。The following is an overview of the topics detailed in this article. This summary is not intended to limit the scope of protection of the claims.
本申请提供了一种磷石膏自流平砂浆及其制备方法和应用,该石膏自流平砂浆采用固体废弃物磷石膏和固体废弃物为主要材料,完全实现了水泥的零添加,不但极大地降低了自流平砂浆的生产成本,实现了固体废弃物的资源再利用,而且该石膏自流平砂浆具有良好的流动性和力学强度。This application provides a self-leveling phosphogypsum mortar and a preparation method and application thereof. The self-leveling gypsum mortar uses solid waste phosphogypsum and solid waste as main materials, which completely realizes zero addition of cement, and not only greatly reduces The production cost of the self-leveling mortar realizes the reuse of solid waste resources, and the gypsum self-leveling mortar has good fluidity and mechanical strength.
本申请提供了一种磷石膏自流平砂浆,所述磷石膏自流平砂浆的制备原料包括磷石膏和固体废弃物,并且不包括水泥,所述固体废弃物选自赤泥、造纸白泥和钢渣中的任意一种或多种。The present application provides a phosphogypsum self-leveling mortar. The raw materials for the preparation of the phosphogypsum self-leveling mortar include phosphogypsum and solid waste, and do not include cement, and the solid waste is selected from red mud, papermaking white mud and steel slag Any one or more of them.
在本申请的实施例中,以所述磷石膏的添加量为100重量份计,所述赤泥的添加量可以为10重量份至20重量份。In the embodiment of the present application, based on the addition amount of the phosphogypsum being 100 parts by weight, the addition amount of the red mud may be 10 parts by weight to 20 parts by weight.
在本申请的实施例中,所述赤泥可以为烧结法赤泥。In the embodiment of the present application, the red mud may be sintering red mud.
在本申请的实施例中,以所述磷石膏的添加量为100重量份计,所述造纸白泥的添加量可以为8重量份至15重量份。In the embodiment of the present application, based on the addition amount of the phosphogypsum being 100 parts by weight, the addition amount of the papermaking white mud may be 8 parts by weight to 15 parts by weight.
在本申请的实施例中,以所述磷石膏的添加量为100重量份计,所述钢渣的添加量可以为15重量份至30重量份。In the embodiments of the present application, based on the addition amount of the phosphogypsum being 100 parts by weight, the addition amount of the steel slag may be 15 to 30 parts by weight.
在本申请的实施例中,所述磷石膏自流平砂浆的制备原料还可以包括导热材料。In the embodiment of the present application, the raw material for preparing the phosphogypsum self-leveling mortar may also include a thermally conductive material.
在本申请的实施例中,以所述磷石膏的添加量为100重量份计,所述导热材料的添加量可以为5重量份至10重量份。In the embodiment of the present application, based on the addition amount of the phosphogypsum being 100 parts by weight, the addition amount of the thermally conductive material may be 5 parts by weight to 10 parts by weight.
在本申请的实施例中,所述导热材料可以选自氧化铝、氧化锌、碳化硅、碳纳米管、氮化铝和氮化硼中的任意一种或多种。In the embodiment of the present application, the thermally conductive material may be selected from any one or more of aluminum oxide, zinc oxide, silicon carbide, carbon nanotubes, aluminum nitride, and boron nitride.
在本申请的实施例中,所述磷石膏自流平砂浆的制备原料还可以包括骨料、缓凝剂、消泡剂、保水剂、减水剂和可再分散性乳胶粉,并且以所述磷石膏的添加量为100重量份计,所述骨料的添加量可以为20重量份至50重量份,所述缓凝剂的添加量可以为0.06重量份至0.1重量份,所述消泡剂的添加量可以为0.06重量份至0.12重量份,所述保水剂的添加量可以为0.06 重量份至0.12重量份,所述减水剂的添加量可以为0.03重量份至0.08重量份,所述可再分散性乳胶粉的添加量可以为0.2重量份至0.7重量份。In the embodiments of the present application, the preparation raw materials of the phosphogypsum self-leveling mortar may also include aggregates, retarders, defoamers, water-retaining agents, water-reducing agents and redispersible latex powders, and the The addition amount of phosphogypsum is 100 parts by weight, the addition amount of the aggregate may be 20 parts by weight to 50 parts by weight, the addition amount of the retarder may be 0.06 parts by weight to 0.1 parts by weight, and the defoaming The addition amount of the water-retaining agent can be 0.06 parts by weight to 0.12 parts by weight, the addition amount of the water-retaining agent can be 0.06 parts by weight to 0.12 parts by weight, and the addition amount of the water reducing agent can be 0.03 parts by weight to 0.08 parts by weight. The added amount of the redispersible latex powder may be 0.2 parts by weight to 0.7 parts by weight.
在本申请的实施例中,所述磷石膏自流平砂浆的制备原料可以包括:100重量份磷石膏、10重量份至20重量份赤泥、40重量份至50重量份骨料、0.06重量份至0.1重量份缓凝剂、0.06重量份至0.12重量份消泡剂、0.06重量份至0.12重量份保水剂、0.03重量份至0.08重量份减水剂、0.2重量份至0.7重量份可再分散性乳胶粉;任选地,还可以包括5重量份至10重量份导热材料。In the embodiment of the present application, the raw materials for preparing the phosphogypsum self-leveling mortar may include: 100 parts by weight of phosphogypsum, 10 parts by weight to 20 parts by weight of red mud, 40 parts by weight to 50 parts by weight of aggregate, 0.06 parts by weight To 0.1 parts by weight retarder, 0.06 parts by weight to 0.12 parts by weight defoamer, 0.06 parts by weight to 0.12 parts by weight water-retaining agent, 0.03 parts by weight to 0.08 parts by weight water reducing agent, 0.2 parts by weight to 0.7 parts by weight, redispersible Sexual latex powder; optionally, it can also include 5 parts by weight to 10 parts by weight of thermally conductive material.
在本申请的实施例中,所述磷石膏自流平砂浆的制备原料可以包括:100重量份磷石膏、8重量份至15重量份造纸白泥、40重量份至48重量份骨料、0.06重量份至0.1重量份缓凝剂、0.06重量份至0.12重量份消泡剂、0.06重量份至0.12重量份保水剂、0.03重量份至0.08重量份减水剂、0.2重量份至0.7重量份可再分散性乳胶粉;任选地,还可以包括5重量份至10重量份导热材料。In the embodiment of the present application, the raw materials for preparing the phosphogypsum self-leveling mortar may include: 100 parts by weight of phosphogypsum, 8 parts by weight to 15 parts by weight of papermaking white mud, 40 parts by weight to 48 parts by weight of aggregate, 0.06 parts by weight Parts to 0.1 parts by weight of retarder, 0.06 parts by weight to 0.12 parts by weight of defoamer, 0.06 parts by weight to 0.12 parts by weight of water retaining agent, 0.03 parts by weight to 0.08 parts by weight of water reducing agent, 0.2 parts by weight to 0.7 parts by weight Dispersible latex powder; optionally, it may also include 5 parts by weight to 10 parts by weight of thermally conductive material.
在本申请的实施例中,所述磷石膏自流平砂浆的制备原料可以包括:100重量份磷石膏、15重量份至30重量份钢渣、20重量份至30重量份骨料、0.06重量份至0.1重量份缓凝剂、0.06重量份至0.12重量份消泡剂、0.06重量份至0.12重量份保水剂、0.03重量份至0.08重量份减水剂、0.2重量份至0.7重量份可再分散性乳胶粉;任选地,还可以包括5重量份至10重量份导热材料。In the embodiment of the present application, the raw materials for preparing the phosphogypsum self-leveling mortar may include: 100 parts by weight of phosphogypsum, 15 parts by weight to 30 parts by weight of steel slag, 20 parts by weight to 30 parts by weight of aggregate, 0.06 parts by weight to 0.1 parts by weight retarder, 0.06 parts by weight to 0.12 parts by weight defoamer, 0.06 parts by weight to 0.12 parts by weight water retaining agent, 0.03 parts by weight to 0.08 parts by weight water reducing agent, 0.2 parts by weight to 0.7 parts by weight of redispersibility Latex powder; optionally, it can also include 5 parts by weight to 10 parts by weight of thermally conductive material.
在本申请的实施例中,所述骨料可以选自本领域中常用的骨料,例如,高炉矿渣粉、石英砂等。In the embodiments of the present application, the aggregate may be selected from aggregates commonly used in the art, for example, blast furnace slag powder, quartz sand, and the like.
在本申请的实施例中,所述缓凝剂可以选自本领域中常用的缓凝剂,例如,柠檬酸钠、柠檬酸、酒石酸钠等。In the embodiments of the present application, the retarder may be selected from retarders commonly used in the art, for example, sodium citrate, citric acid, sodium tartrate and the like.
在本申请的实施例中,所述消泡剂可以选自本领域中常用的消泡剂,例如,聚二甲基硅氧烷等。In the embodiments of the present application, the defoaming agent may be selected from defoaming agents commonly used in the art, for example, polydimethylsiloxane and the like.
在本申请的实施例中,所述保水剂可以选自本领域中常用的保水剂,例如,羟丙基甲基纤维素醚等。In the embodiments of the present application, the water-retaining agent may be selected from water-retaining agents commonly used in the art, for example, hydroxypropyl methyl cellulose ether and the like.
在本申请的实施例中,所述减水剂可以选自本领域中常用的减水剂,例如,聚羧酸减水剂等。In the embodiments of the present application, the water reducing agent may be selected from water reducing agents commonly used in the art, for example, polycarboxylic acid water reducing agents and the like.
本申请还提供了如上所述的磷石膏自流平砂浆的制备方法,所述制备方法包括:The application also provides a preparation method of the above-mentioned phosphogypsum self-leveling mortar, and the preparation method includes:
将所述磷石膏与所述固体废弃物混合,煅烧,球磨;以及Mixing the phosphogypsum with the solid waste, calcining, and ball milling; and
将球磨后的磷石膏与固体废弃物与骨料、缓凝剂、消泡剂、保水剂、减水剂、可再分散性乳胶粉和任选地导热材料混合。The ball-milled phosphogypsum and solid waste are mixed with aggregate, retarder, defoamer, water-retaining agent, water-reducing agent, redispersible latex powder, and optionally thermal conductive material.
在本申请的实施例中,所述煅烧的温度可以为120-150℃,时间可以为0.5-1小时。In the embodiment of the present application, the calcination temperature may be 120-150° C., and the time may be 0.5-1 hour.
在本申请的实施例中,球磨后的磷石膏与固体废弃物的勃氏比表面积可以为4000-5500cm 2/g。本申请通过采用具有强碱性的固体废弃物(赤泥、造纸白泥和钢渣)对具有强酸性的磷石膏固体废弃物进行中和,获得了pH值接近中性的复合胶凝材料,使得磷石膏能够用于制备自流平砂浆;而且由于赤泥、造纸白泥和钢渣均具有水化胶凝性,使得磷石膏和赤泥、造纸白泥、钢渣的采用能够完全代替水泥;当固体废弃物中含有造纸白泥时,由于造纸白泥的主要成分为碳酸钙和残留植物纤维,能够改善自流平砂浆的抗折强度,使得自流平砂浆的强度得到了提高;当固体废弃物为钢渣时,由于钢渣具有导热性,可以获得导热性能优良的石膏基自流平砂浆,该砂浆可用于地暖管道间隙填充及上层覆面。进一步地,导热材料的添加提高了自流平砂浆的导热系数,使得采用赤泥和造纸白泥制备的自流平砂浆也能够用于地暖管道间隙填充及上层覆面。此外,磷石膏和烧结法赤泥均具有高硬度和耐磨的性能,提高了石膏基自流平砂浆的强度。因此,本申请不但极大地节省了自流平砂浆的原料成本,而且实现了磷石膏和赤泥、造纸白泥、钢渣这几种固体废弃物的资源再利用。 In the embodiments of the present application, the Blaine specific surface area of the phosphogypsum and solid waste after ball milling may be 4000-5500 cm 2 /g. This application neutralizes the strongly acidic phosphogypsum solid waste by using strong alkaline solid waste (red mud, papermaking white mud and steel slag) to obtain a composite cementitious material with a pH close to neutral, so that Phosphogypsum can be used to prepare self-leveling mortar; and because red mud, papermaking white mud and steel slag all have hydration and gelling properties, the use of phosphogypsum, red mud, papermaking white mud, and steel slag can completely replace cement; when solid waste When the paper-making white mud is contained in the paper-making white mud, the main components of the paper-making white mud are calcium carbonate and residual plant fibers, which can improve the flexural strength of the self-leveling mortar, so that the strength of the self-leveling mortar is improved; when the solid waste is steel slag Because of the thermal conductivity of steel slag, a gypsum-based self-leveling mortar with excellent thermal conductivity can be obtained. The mortar can be used for gap filling and upper cladding of floor heating pipes. Further, the addition of the thermally conductive material improves the thermal conductivity of the self-leveling mortar, so that the self-leveling mortar prepared from red mud and papermaking white mud can also be used for gap filling and upper cladding of floor heating pipes. In addition, both phosphogypsum and sintering red mud have high hardness and wear resistance, which improves the strength of gypsum-based self-leveling mortar. Therefore, this application not only greatly saves the raw material cost of self-leveling mortar, but also realizes the resource reuse of phosphogypsum, red mud, papermaking white mud, and steel slag.
本申请的其它特征和优点将在随后的说明书中阐述,并且,部分地从说明书中变得显而易见,或者通过实施本申请而了解。本申请的其他优点可通过在说明书以及权利要求书中所描述的方案来实现和获得。Other features and advantages of the present application will be described in the following description, and partly become obvious from the description, or understood by implementing the present application. Other advantages of the present application can be realized and obtained through the solutions described in the specification and claims.
具体实施方式Detailed ways
为使本申请的目的、技术方案和优点更加清楚明白,下文中将对本申请的实施例进行详细说明。需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互任意组合。In order to make the purpose, technical solutions, and advantages of the present application clearer, the embodiments of the present application will be described in detail below. It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other arbitrarily if there is no conflict.
以下实施例中所采用的磷石膏来自武汉某磷业公司,烧结法赤泥来自山东某铝业公司,造纸白泥来自湖南某纸业公司,钢渣粉和高炉矿渣粉来自湖南某钢铁公司,其他原料均为普通市售产品。The phosphogypsum used in the following examples comes from a certain phosphorus company in Wuhan, red mud for sintering is from an aluminum company in Shandong, white mud for papermaking comes from a paper company in Hunan, steel slag powder and blast furnace slag powder from a steel company in Hunan, others The raw materials are all common commercial products.
实施例1Example 1
将1000g磷石膏(pH值=3.2)与200g烧结法赤泥(pH值=10.5)混合(混合物的pH约为6.0),于140℃温度下煅烧0.5小时,再在球磨机中球磨,得到勃氏比表面积达5000cm 2/g的粉体,再加入40目和80目的高炉矿渣粉各200g、柠檬酸钠0.8g、聚二甲基硅氧烷1.0g、羟丙基甲基纤维素醚1.0g、聚羧酸减水剂0.5g和可再分散性乳胶粉5g进行充分混合,得到石膏砂浆粉体。 Mix 1000g phosphogypsum (pH=3.2) with 200g sintering red mud (pH=10.5) (pH of the mixture is about 6.0), calcined at 140℃ for 0.5 hours, and then ball mill in a ball mill to obtain Brinell For powder with a specific surface area of 5000cm 2 /g, add 200g of 40 mesh and 80 mesh blast furnace slag powder, 0.8g sodium citrate, 1.0g polydimethylsiloxane, 1.0g hydroxypropyl methylcellulose ether , 0.5g of polycarboxylic acid water reducing agent and 5g of redispersible latex powder are thoroughly mixed to obtain gypsum mortar powder.
实施例2Example 2
将1000g磷石膏(pH值=3.2)与150g烧结法赤泥(pH值=11.3)混合(混合物的pH约为6.5),于140℃温度下煅烧0.5小时,再在球磨机中球磨,得到勃氏比表面积达4500cm 2/g的粉体,再加入40目和80目的高炉矿渣粉各225g、酒石酸钠0.9g、聚二甲基硅氧烷0.8g、羟丙基甲基纤维素醚1.2g、聚羧酸减水剂0.5g和可再分散性乳胶粉5g进行充分混合,得到石膏砂浆粉体。 Mix 1000g of phosphogypsum (pH=3.2) with 150g of sintering red mud (pH=11.3) (pH of the mixture is about 6.5), calcined at 140°C for 0.5 hours, and then ball mill in a ball mill to obtain Brinell For powder with a specific surface area of 4500cm 2 /g, add 225g of 40 mesh and 80 mesh blast furnace slag powder, 0.9g sodium tartrate, 0.8g polydimethylsiloxane, 1.2g hydroxypropyl methylcellulose ether, 0.5 g of polycarboxylic acid water reducing agent and 5 g of redispersible latex powder were thoroughly mixed to obtain gypsum mortar powder.
实施例3Example 3
将1000g磷石膏(pH值=3.2)与100g烧结法赤泥(pH值=12.5)混合(混合物的pH约为6.8),于150℃温度下煅烧1小时,再在球磨机中球磨,得到勃氏比表面积达4000cm 2/g的粉体,再加入40目和80目的高炉矿渣粉各250g、柠檬酸1.0g、聚二甲基硅氧烷1.0g、羟丙基甲基纤维素醚1.0g、聚羧酸减水剂0.5g和可再分散性乳胶粉5g进行充分混合,得到石膏砂浆粉体。 Mix 1000g of phosphogypsum (pH=3.2) and 100g of sintering red mud (pH=12.5) (pH of the mixture is about 6.8), calcined at 150°C for 1 hour, and then ball mill in a ball mill to obtain Brinell For powder with a specific surface area of 4000 cm 2 /g, add 250 g of 40 mesh and 80 mesh blast furnace slag powder, 1.0 g of citric acid, 1.0 g of polydimethylsiloxane, and 1.0 g of hydroxypropyl methyl cellulose ether. 0.5 g of polycarboxylic acid water reducing agent and 5 g of redispersible latex powder were thoroughly mixed to obtain gypsum mortar powder.
实施例4Example 4
将1000g磷石膏(pH值=3.2)与100g烧结法赤泥(pH值=10.5)混合 (混合物的pH约为6.2),于120℃温度下煅烧0.5小时,再在球磨机中球磨,得到勃氏比表面积达4000cm 2/g的粉体,然后向其中加入40目和80目的高炉矿渣粉各240g、柠檬酸钠0.6g、聚二甲基硅氧烷1.0g、羟丙基甲基纤维素醚0.8g、聚羧酸减水剂0.5g和可再分散性乳胶粉5g进行充分混合,得到石膏砂浆粉体。 Mix 1000g of phosphogypsum (pH=3.2) with 100g of sintering red mud (pH=10.5) (pH of the mixture is about 6.2), calcined at 120°C for 0.5 hours, and then ball mill in a ball mill to obtain Brinell Powder with a specific surface area of 4000 cm 2 /g, then add 240 g of 40 mesh and 80 mesh blast furnace slag powder, 0.6 g of sodium citrate, 1.0 g of polydimethylsiloxane, and hydroxypropyl methyl cellulose ether. 0.8 g, 0.5 g of polycarboxylic acid water reducing agent and 5 g of redispersible latex powder were thoroughly mixed to obtain gypsum mortar powder.
对比例1Comparative example 1
将1000g磷石膏(pH值=3.2)与10g石灰混合,于150℃温度下煅烧0.5小时,再在球磨机中球磨,得到勃氏比表面积达4000cm 2/g的粉体,再加入水泥200g,40目和80目的石英砂各200g、柠檬酸钠0.8g、聚二甲基硅氧烷1.0g、羟丙基甲基纤维素醚1.0g、聚羧酸减水剂0.5g和可再分散性乳胶粉5g进行充分混合,得到石膏砂浆粉体。 Mix 1000g of phosphogypsum (pH=3.2) with 10g of lime, calcinate at 150℃ for 0.5 hours, and then ball mill in a ball mill to obtain a powder with a Blaine specific surface area of 4000cm 2 /g, and then add 200g of cement, 40 200g each of mesh and 80-mesh quartz sand, 0.8g sodium citrate, 1.0g polydimethylsiloxane, 1.0g hydroxypropyl methylcellulose ether, 0.5g polycarboxylic acid water reducing agent and redispersible latex 5 g of powder was thoroughly mixed to obtain gypsum mortar powder.
对比例2Comparative example 2
将1000g脱硫石膏于140℃温度下煅烧0.5小时,再在球磨机中球磨,得到勃氏比表面积达4000cm 2/g的粉体,再加入水泥100g,40目和80目的石英砂各200g、柠檬酸钠0.8g、聚二甲基硅氧烷1.0g、羟丙基甲基纤维素醚1.0g、聚羧酸减水剂0.5g和可再分散性乳胶粉5g进行充分混合,得到石膏砂浆粉体。 1000g of desulfurized gypsum was calcined at 140℃ for 0.5 hours, and then ball milled in a ball mill to obtain a powder with a Blaine specific surface area of 4000cm 2 /g. Then add 100g of cement, 200g of 40 mesh and 80 mesh quartz sand, citric acid Sodium 0.8g, polydimethylsiloxane 1.0g, hydroxypropyl methylcellulose ether 1.0g, polycarboxylic acid water reducing agent 0.5g and redispersible latex powder 5g are mixed thoroughly to obtain gypsum mortar powder .
测试例1Test case 1
根据中华人民共和国建材行业标准JC/T 1023-2007《石膏基自流平砂浆》测试由上述实施例1至实施例4和对比例1至对比例2制备的石膏砂浆粉体制成的自流平砂浆的性能。测试结果如表1所示。According to the People’s Republic of China building materials industry standard JC/T 1023-2007 "Gypsum-based self-leveling mortar", test the self-leveling mortar made from the gypsum mortar powder prepared in the above Examples 1 to 4 and Comparative Examples 1 to 2 Performance. The test results are shown in Table 1.
表1Table 1
 To 实施例1Example 1 实施例2Example 2 实施例3Example 3 实施例4Example 4 对比例1Comparative example 1 对比例2Comparative example 2
30min流动度损失/mm30min fluidity loss/mm 1.81.8 2.02.0 2.52.5 2.12.1 2.52.5 2.82.8
初凝时间(h)Initial setting time (h) 22 1.51.5 1.31.3 1.71.7 1.51.5 1.61.6
终凝时间(h)Final setting time (h) 3.53.5 3.23.2 2.72.7 2.42.4 2.52.5 2.82.8
24h抗折强度(MPa)24h flexural strength (MPa) 3.83.8 3.73.7 3.53.5 3.53.5 3.23.2 3.53.5
24h抗压强度(MPa)24h compressive strength (MPa) 10.610.6 9.89.8 9.69.6 8.68.6 9.89.8 9.89.8
绝干抗折强度(MPa)Absolute dry flexural strength (MPa) 15.815.8 15.215.2 12.312.3 11.811.8 12.912.9 13.513.5
绝干抗压强度(MPa)Absolute dry compressive strength (MPa) 30.530.5 28.628.6 25.525.5 25.225.2 32.432.4 30.230.2
绝干拉伸粘结强度(MPa)Absolute dry tensile bond strength (MPa) 1.31.3 1.31.3 1.21.2 1.31.3 1.21.2 1.21.2
收缩率(%)Shrinkage(%) 0.020.02 0.020.02 0.030.03 0.020.02 0.020.02 0.020.02
可以看出,采用本申请实施例1至实施例4的石膏砂浆粉体制得的自流平砂浆的流动度损失、凝结时间、强度、收缩率均满足JC/T 1023-2007的要求,并且与对比例1和对比例2的含有水泥的自流平砂浆的各项性能接近,说明磷石膏和烧结法赤泥的引入对砂浆的性能没有不利影响,采用磷石膏和烧结法赤泥能够完全代替水泥,从而降低生产成本和实现固体废弃物的资源再利用。It can be seen that the fluidity loss, setting time, strength, and shrinkage rate of the self-leveling mortar obtained by using the gypsum mortar powder system of Examples 1 to 4 of this application meet the requirements of JC/T 1023-2007, and are compatible with The properties of the self-leveling cement-containing mortar of Example 1 and Comparative Example 2 are similar, indicating that the introduction of phosphogypsum and sintering red mud has no adverse effect on the performance of the mortar. The use of phosphogypsum and sintering red mud can completely replace cement. Thereby reducing production costs and realizing the reuse of solid waste resources.
实施例5Example 5
将1000g磷石膏(pH值=3.2)与200g烧结法赤泥(pH值=10.5)混合(混合物的pH约为6.8),于140℃温度下煅烧0.5小时,再在球磨机中球磨,得到勃氏比表面积达5000cm 2/g的粉体,然后向其中加入粒径为50nm至100nm的氧化铝粉体100g、40目和80目的高炉矿渣粉各200g、柠檬酸钠0.8g、聚二甲基硅氧烷1.0g、羟丙基甲基纤维素醚1.0g、聚羧酸减水剂0.5g和可再分散性乳胶粉5g进行充分混合,得到石膏砂浆粉体。 Mix 1000g phosphogypsum (pH=3.2) with 200g sintering red mud (pH=10.5) (pH of the mixture is about 6.8), calcined at 140°C for 0.5 hours, and then ball mill in a ball mill to obtain Brinell A powder with a specific surface area of 5000 cm 2 /g, and then add 100 g of alumina powder with a particle size of 50 nm to 100 nm, 200 g of 40 mesh and 80 mesh blast furnace slag powder, 0.8 g of sodium citrate, and polydimethyl silicon 1.0 g of oxane, 1.0 g of hydroxypropyl methyl cellulose ether, 0.5 g of polycarboxylic acid water reducing agent and 5 g of redispersible latex powder were thoroughly mixed to obtain gypsum mortar powder.
实施例6Example 6
将1000g磷石膏(pH值=3.2)与150g烧结法赤泥(pH值=10.5)混合(混合物的pH约为6.5),于120℃温度下煅烧1小时,再在球磨机中球磨,得到勃氏比表面积达4500cm 2/g的粉体,然后向其中加入粒径为50nm至100nm的碳化硅粉体80g、40目和80目的高炉矿渣粉各220g、酒石酸钠0.6g、聚二甲基硅氧烷1.0g、羟丙基甲基纤维素醚0.8g、聚羧酸减水剂0.5g和可再分散性乳胶粉5g进行充分混合,得到石膏砂浆粉体。 Mix 1000g phosphogypsum (pH=3.2) with 150g sintering red mud (pH=10.5) (pH of the mixture is about 6.5), calcined at 120°C for 1 hour, and then ball mill in a ball mill to obtain Brinell Powder with a specific surface area of 4500cm 2 /g, and then add 80g of silicon carbide powder with a particle size of 50nm to 100nm, 220g of 40 mesh and 80 mesh blast furnace slag powder, 0.6g of sodium tartrate, and polydimethylsiloxane 1.0 g of alkane, 0.8 g of hydroxypropyl methyl cellulose ether, 0.5 g of polycarboxylic acid water reducing agent and 5 g of redispersible latex powder were thoroughly mixed to obtain gypsum mortar powder.
实施例7Example 7
将1000g磷石膏(pH值=3.2)与100g烧结法赤泥(pH值=10.5)混合(混合物的pH约为6.2),于130℃温度下煅烧0.5小时,再在球磨机中球 磨,得到勃氏比表面积达4000cm 2/g的粉体,然后向其中加入粒径为50nm至100nm的氧化锌粉体100g、40目和80目的高炉矿渣粉各240g、柠檬酸0.6g、聚二甲基硅氧烷1.0g、羟丙基甲基纤维素醚0.8g、聚羧酸减水剂0.5g和可再分散性乳胶粉5g进行充分混合,得到石膏砂浆粉体。 Mix 1000g phosphogypsum (pH=3.2) with 100g sintering red mud (pH=10.5) (pH of the mixture is about 6.2), calcined at 130°C for 0.5 hours, and then ball mill in a ball mill to obtain Brinell Powder with a specific surface area of 4000cm 2 /g, and then add 100g of zinc oxide powder with a particle size of 50nm to 100nm, 240g of 40 mesh and 80 mesh blast furnace slag powder, 0.6g of citric acid, and polydimethylsiloxane 1.0 g of alkane, 0.8 g of hydroxypropyl methyl cellulose ether, 0.5 g of polycarboxylic acid water reducing agent and 5 g of redispersible latex powder were thoroughly mixed to obtain gypsum mortar powder.
实施例8Example 8
将1000g磷石膏(pH值=3.2)与100g烧结法赤泥(pH值=10.5)混合(混合物的pH约为6.2),于120℃温度下煅烧1小时,再在球磨机中球磨,得到勃氏比表面积达4000cm 2/g的粉体,然后向其中加入外径为50nm至100nm的碳纳米管50g、40目和80目的高炉矿渣粉各240g、柠檬酸钠0.6g、聚二甲基硅氧烷1.0g、羟丙基甲基纤维素醚0.8g、聚羧酸减水剂0.5g和可再分散性乳胶粉5g进行充分混合,得到石膏砂浆粉体。 Mix 1000g phosphogypsum (pH=3.2) with 100g sintering red mud (pH=10.5) (pH of the mixture is about 6.2), calcined at 120°C for 1 hour, and then ball mill in a ball mill to obtain Brinell Powder with a specific surface area of 4000cm 2 /g, and then add 50g of carbon nanotubes with an outer diameter of 50nm to 100nm, 240g of 40 mesh and 80 mesh blast furnace slag powder, 0.6g of sodium citrate, polydimethylsiloxane 1.0 g of alkane, 0.8 g of hydroxypropyl methyl cellulose ether, 0.5 g of polycarboxylic acid water reducing agent and 5 g of redispersible latex powder were thoroughly mixed to obtain gypsum mortar powder.
对比例3Comparative example 3
将1000g磷石膏(pH值=3.2)与10g石灰混合(混合物的pH约为6.5),于150℃温度下煅烧0.5小时,再在球磨机中球磨,得到勃氏比表面积达4000cm 2/g的粉体,再加入水泥100g、40目和80目的石英砂各200g、柠檬酸钠0.8g、聚二甲基硅氧烷1.0g、羟丙基甲基纤维素醚1.0g、聚羧酸减水剂0.5g和可再分散性乳胶粉5g进行充分混合,得到石膏砂浆粉体。 Mix 1000g of phosphogypsum (pH=3.2) with 10g of lime (the pH of the mixture is about 6.5), calcinate at 150°C for 0.5 hours, and then ball mill in a ball mill to obtain powder with a Blaine specific surface area of 4000cm 2 /g Add cement 100g, 40 mesh and 80 mesh quartz sand each with 200 g, sodium citrate 0.8 g, polydimethylsiloxane 1.0 g, hydroxypropyl methyl cellulose ether 1.0 g, polycarboxylic acid water reducing agent 0.5 g and 5 g of redispersible latex powder were thoroughly mixed to obtain gypsum mortar powder.
测试例2Test case 2
根据中华人民共和国建材行业标准JC/T 1023-2007《石膏基自流平砂浆》测试由上述实施例5至实施例8和对比例3制备的石膏砂浆粉体制成的自流平砂浆的流动性能、凝结时间、强度和收缩率性能;根据中国国家标准GB/T10295-2008《绝热材料稳态热阻及有关特性的测定热流计法》及ASTM C518-04《用热流计法测定稳态热通量和热传递特性的试验方法》,采用平板热流计法,测试由上述实施例4至实施例8和对比例3制备的石膏砂浆粉体制成的自流平砂浆的导热系数。测试结果如表2所示。According to the People’s Republic of China building materials industry standard JC/T 1023-2007 "Gypsum-based self-leveling mortar", the flow properties of the self-leveling mortar made from the gypsum mortar powder prepared in the above Examples 5 to 8 and Comparative Example 3 were tested, Performance of setting time, strength and shrinkage rate; According to Chinese national standard GB/T10295-2008 "Determination of steady-state thermal resistance and related characteristics of thermal insulation materials by heat flow meter method" and ASTM C518-04 "Measurement of steady-state heat flux by heat flow meter method And the test method of heat transfer characteristics", using the flat heat flow meter method to test the thermal conductivity of the self-leveling mortar made from the gypsum mortar powder prepared in the foregoing Examples 4 to 8 and Comparative Example 3. The test results are shown in Table 2.
表2Table 2
Figure PCTCN2019103405-appb-000001
Figure PCTCN2019103405-appb-000001
Figure PCTCN2019103405-appb-000002
Figure PCTCN2019103405-appb-000002
可以看出,采用本申请实施例5至实施例8的石膏砂浆粉体制得的自流平砂浆的流动度损失、凝结时间、强度、收缩率与对比例3的采用水泥制备的石膏砂浆粉体制得的自流平砂浆相近,均满足JC/T 1023-2007的要求,说明烧结法赤泥和导热材料的引入对砂浆的性能没有不利影响,采用磷石膏和烧结法赤泥能够完全代替水泥,从而降低生产成本和实现固体废弃物的资源再利用。此外,与实施例4和对比例3的不添加导热材料制备的砂浆相比,本申请实施例5至实施例8的含有导热材料的石膏砂浆的导热系数明显更高,说明本申请实施例的磷石膏自流平砂浆可以用于地暖管道间隙填充及上层覆面。It can be seen that the fluidity loss, setting time, strength, and shrinkage rate of the self-leveling mortar obtained by using the gypsum mortar powder system of Example 5 to Example 8 of this application are compared with those of the gypsum mortar powder system prepared by cement in Comparative Example 3. The self-leveling mortar is similar to the requirements of JC/T 1023-2007, indicating that the introduction of sintering red mud and thermal conductive materials has no adverse effect on the performance of the mortar. The use of phosphogypsum and sintering red mud can completely replace cement, thereby reducing Production costs and the realization of solid waste resource reuse. In addition, compared with the mortar prepared without adding thermally conductive material in Example 4 and Comparative Example 3, the thermal conductivity of the gypsum mortar containing thermally conductive material in Examples 5 to 8 of the present application is significantly higher. The phosphogypsum self-leveling mortar can be used for gap filling and upper cladding of floor heating pipes.
实施例9Example 9
将1000g磷石膏(pH值=3.2)与150g造纸白泥(pH值=12.7)混合,于130℃温度下煅烧1小时,再在球磨机中球磨1小时,获得pH值为6.8左右、比表面积为5500cm 2/g的复合粉体材料,然后向其中加入粒径为50nm至100nm的氧化铝粉体100g、40目和80目的高炉矿渣粉各200g、柠檬酸钠0.6g、聚二甲基硅氧烷0.6g、羟丙基甲基纤维素醚0.6g、聚羧酸减水剂0.3g和可再分散性乳胶粉5g进行充分混合,得到石膏砂浆粉体。 Mix 1000g of phosphogypsum (pH=3.2) with 150g of papermaking white mud (pH=12.7), calcined at 130°C for 1 hour, and then ball mill in a ball mill for 1 hour to obtain a pH of about 6.8 and a specific surface area of 5500cm 2 /g of composite powder material, and then add 100g of alumina powder with a particle size of 50nm to 100nm, 200g of 40 mesh and 80 mesh blast furnace slag powder, 0.6g of sodium citrate, and polydimethylsiloxane 0.6 g of alkane, 0.6 g of hydroxypropyl methyl cellulose ether, 0.3 g of polycarboxylic acid water reducing agent and 5 g of redispersible latex powder were thoroughly mixed to obtain gypsum mortar powder.
实施例10Example 10
将1000g磷石膏(pH值=3.2)与120g造纸白泥(pH值=12.7)混合, 于150℃温度下煅烧0.5小时,再在球磨机中球磨1小时,获得pH值为6.4左右、比表面积为5000cm 2/g的复合粉体材料,然后向其中加入粒径为50nm至100nm的碳化硅粉体80g、40目和80目的高炉矿渣粉各220g、酒石酸钠0.6g、聚二甲基硅氧烷1.0g、羟丙基甲基纤维素醚0.8g、聚羧酸减水剂0.5g和可再分散性乳胶粉5g进行充分混合,得到石膏砂浆粉体。 Mix 1000g of phosphogypsum (pH=3.2) with 120g of papermaking white mud (pH=12.7), calcined at 150°C for 0.5 hours, and then ball mill in a ball mill for 1 hour to obtain a pH of about 6.4 and a specific surface area of 5000cm 2 /g composite powder material, and then add 80g of silicon carbide powder with a particle size of 50nm to 100nm, 220g of 40 mesh and 80 mesh blast furnace slag powder, 0.6g of sodium tartrate, and polydimethylsiloxane 1.0 g, 0.8 g of hydroxypropyl methyl cellulose ether, 0.5 g of polycarboxylic acid water reducing agent and 5 g of redispersible latex powder were thoroughly mixed to obtain gypsum mortar powder.
实施例11Example 11
将1000g磷石膏(pH值=3.2)与100g造纸白泥(pH值=12.7)混合,于130℃温度下煅烧1小时,再在球磨机中球磨1小时,获得pH值为6.0左右、比表面积为4500cm 2/g的复合粉体材料,然后向其中加入粒径为50nm至100nm的氧化锌粉体100g、40目和80目的高炉矿渣粉各240g、柠檬酸钠1.2g、聚二甲基硅氧烷1.2g、羟丙基甲基纤维素醚0.8g、聚羧酸减水剂0.5g和可再分散性乳胶粉5g进行充分混合,得到石膏砂浆粉体。 Mix 1000g of phosphogypsum (pH=3.2) with 100g of papermaking white mud (pH=12.7), calcined at 130°C for 1 hour, and then ball mill in a ball mill for 1 hour to obtain a pH of about 6.0 and a specific surface area of about 6.0. 4500cm 2 /g composite powder material, and then add 100g of zinc oxide powder with a particle size of 50nm to 100nm, 240g of 40 mesh and 80 mesh blast furnace slag powder, 1.2g of sodium citrate, and polydimethylsiloxane 1.2 g of alkane, 0.8 g of hydroxypropyl methyl cellulose ether, 0.5 g of polycarboxylic acid water reducing agent and 5 g of redispersible latex powder were thoroughly mixed to obtain gypsum mortar powder.
实施例12Example 12
将1000g磷石膏(pH值=3.0)与80g造纸白泥(pH值=12.7)混合,于140℃温度下煅烧0.5小时,再在球磨机中球磨1小时,获得pH值为5.7左右、比表面积为4000cm 2/g的复合粉体材料,然后向其中加入粒径为50nm至100nm的碳纳米管50g、40目和80目的高炉矿渣粉各240g、柠檬酸0.6g、聚二甲基硅氧烷1.0g、羟丙基甲基纤维素醚1.2g、聚羧酸减水剂0.8g和可再分散性乳胶粉5g进行充分混合,得到石膏砂浆粉体。 Mix 1000g of phosphogypsum (pH=3.0) with 80g of papermaking white mud (pH=12.7), calcined at 140℃ for 0.5 hours, and then ball mill in a ball mill for 1 hour to obtain a pH of about 5.7 and a specific surface area of 4000cm 2 /g composite powder material, and then add 50g of carbon nanotubes with a particle size of 50nm to 100nm, 240g of 40 mesh and 80 mesh blast furnace slag powder, 0.6g of citric acid, and 1.0 of polydimethylsiloxane g. 1.2 g of hydroxypropyl methyl cellulose ether, 0.8 g of polycarboxylic acid water reducing agent and 5 g of redispersible latex powder are thoroughly mixed to obtain gypsum mortar powder.
对比例4Comparative example 4
将1000g磷石膏(pH值=3.0)与80g造纸白泥(pH值=12.7)混合,于150℃温度下煅烧1小时,再在球磨机中球磨1小时,获得pH值为5.7左右、比表面积为4000cm 2/g的复合粉体材料,然后向其中加入40目和80目的高炉矿渣粉各240g、柠檬酸钠0.6g、聚二甲基硅氧烷1.0g、羟丙基甲基纤维素醚0.8g、聚羧酸减水剂0.5g和可再分散性乳胶粉5g进行充分混合,得到石膏砂浆粉体。 Mix 1000g of phosphogypsum (pH=3.0) with 80g of papermaking white mud (pH=12.7), calcined at 150°C for 1 hour, and then ball mill in a ball mill for 1 hour to obtain a pH of about 5.7 and a specific surface area of 4000cm 2 /g composite powder material, then add 240g of 40 mesh and 80 mesh blast furnace slag powder, 0.6g sodium citrate, 1.0g polydimethylsiloxane, 0.8 hydroxypropyl methylcellulose ether g. 0.5 g of polycarboxylic acid water reducing agent and 5 g of redispersible latex powder are thoroughly mixed to obtain gypsum mortar powder.
对比例5Comparative example 5
将1000g磷石膏(pH值=3.2)与10g石灰混合,于150℃温度下煅烧0.5 小时,再在球磨机中球磨,得到pH值为6.5左右、勃氏比表面积达4000cm 2/g的粉体,再加入水泥100g、40目和80目的石英砂各200g、柠檬酸钠0.8g、聚二甲基硅氧烷1.0g、羟丙基甲基纤维素醚1.0g、聚羧酸减水剂0.5g和可再分散性乳胶粉5g进行充分混合,得到石膏砂浆粉体。 Mix 1000g of phosphogypsum (pH=3.2) with 10g of lime, calcined at 150°C for 0.5 hours, and then ball mill in a ball mill to obtain a powder with a pH of about 6.5 and a Blaine specific surface area of 4000 cm 2 /g. Then add cement 100g, 40 mesh and 80 mesh quartz sand 200 g each, sodium citrate 0.8 g, polydimethylsiloxane 1.0 g, hydroxypropyl methyl cellulose ether 1.0 g, polycarboxylic acid water reducing agent 0.5 g Mix well with 5 g of redispersible latex powder to obtain gypsum mortar powder.
测试例3Test case 3
根据中华人民共和国建材行业标准JC/T 1023-2007《石膏基自流平砂浆》测试由上述实施例9至实施例12和对比例4至对比例5制备的石膏砂浆粉体制成的自流平砂浆的流动性能、凝结时间、强度和收缩率性能;根据中国国家标准GB/T10295-2008《绝热材料稳态热阻及有关特性的测定热流计法》及ASTM C518-04《用热流计法测定稳态热通量和热传递特性的试验方法》,采用平板热流计法,测试由上述实施例9至实施例12和对比例4至对比例5制备的石膏砂浆粉体制成的自流平砂浆的导热系数。测试结果如表3所示。According to the building materials industry standard of the People's Republic of China JC/T 1023-2007 "Gypsum-based self-leveling mortar", the self-leveling mortar made of gypsum mortar powder prepared from the above Examples 9 to 12 and Comparative Examples 4 to 5 was tested According to the Chinese national standard GB/T10295-2008 "Determination of steady-state thermal resistance and related characteristics of thermal insulation materials by heat flow meter method" and ASTM C518-04 "Determination of stability by heat flow meter method" Test method for state heat flux and heat transfer characteristics", using the flat heat flow meter method to test the self-leveling mortar made from the gypsum mortar powder prepared in the above Examples 9 to 12 and Comparative Examples 4 to 5 Thermal Conductivity. The test results are shown in Table 3.
表3table 3
Figure PCTCN2019103405-appb-000003
Figure PCTCN2019103405-appb-000003
对比实施例12和对比例4可以看出,导热材料的添加没有给自流平砂浆的流动度损失、凝结时间、强度、收缩率带来不利影响。而且,采用本申请 实施例9至实施例12的石膏砂浆粉体制得的自流平砂浆的流动度损失、凝结时间、强度、收缩率与对比例5的采用水泥制备的石膏砂浆粉体制得的自流平砂浆相近,均满足JC/T 1023-2007的要求,说明造纸白泥和导热材料的引入对砂浆的性能没有不利影响,采用磷石膏和造纸白泥能够完全代替水泥,从而降低生产成本和实现固体废弃物的资源再利用。此外,与对比例4和对比例5的不添加导热材料制备的砂浆相比,本申请实施例9至实施例12的含有导热材料的石膏砂浆的导热系数明显更高,说明本申请实施例9至实施例12的磷石膏基导热自流平砂浆可以用于地暖管道间隙填充及上层覆面。Comparing Example 12 and Comparative Example 4, it can be seen that the addition of the thermally conductive material does not adversely affect the fluidity loss, setting time, strength, and shrinkage of the self-leveling mortar. Moreover, the fluidity loss, setting time, strength, and shrinkage rate of the self-leveling mortar obtained by using the gypsum mortar powder system of Example 9 to Example 12 of the present application are compared with those of the self-flowing gypsum mortar powder system prepared by cement in Comparative Example 5. The flat mortar is similar and meets the requirements of JC/T 1023-2007, indicating that the introduction of papermaking white mud and thermal conductive materials has no adverse effect on the performance of the mortar. The use of phosphogypsum and papermaking white mud can completely replace cement, thereby reducing production costs and achieving Resource reuse of solid waste. In addition, compared with the mortar prepared without adding thermally conductive material in Comparative Example 4 and Comparative Example 5, the thermal conductivity of the gypsum mortar containing thermally conductive material in Examples 9 to 12 of the present application is significantly higher, indicating that Example 9 of the present application The phosphogypsum-based thermally conductive self-leveling mortar from Example 12 can be used for gap filling and upper cladding of floor heating pipes.
实施例13Example 13
将1000g磷石膏(pH值=3.0)与300g钢渣粉(pH值=9.5)混合,于150℃温度下煅烧0.5小时,再在球磨机中球磨1小时,获得pH值为6.5左右、比表面积为5500cm 2/g的复合粉体材料,再加入40目高炉矿渣粉200g、柠檬酸钠0.6g、聚二甲基硅氧烷1.0g、羟丙基甲基纤维素醚0.6g、聚羧酸减水剂0.6g和可再分散性乳胶粉7g进行充分混合,得到石膏砂浆粉体。 Mix 1000g of phosphogypsum (pH=3.0) with 300g of steel slag powder (pH=9.5), calcined at 150°C for 0.5 hours, and then ball mill for 1 hour in a ball mill to obtain a pH of about 6.5 and a specific surface area of 5500cm 2 /g of composite powder material, and then add 200g of 40 mesh blast furnace slag powder, 0.6g of sodium citrate, 1.0g of polydimethylsiloxane, 0.6g of hydroxypropyl methylcellulose ether, and polycarboxylic acid for water reduction 0.6 g of the agent and 7 g of the redispersible latex powder were thoroughly mixed to obtain gypsum mortar powder.
实施例14Example 14
将1000g磷石膏(pH值=3.0)与250g钢渣粉(pH值=9.5)混合,于150℃温度下煅烧0.5小时,再在球磨机中球磨1小时,获得pH值为6.5左右、比表面积为5500cm 2/g的复合粉体材料,再加入40目石英砂200g、粒径为50nm至100nm的氧化铝粉体100g、柠檬酸钠0.8g、聚二甲基硅氧烷1.0g、羟丙基甲基纤维素醚1.0g、聚羧酸减水剂0.5g和可再分散性乳胶粉5g进行充分混合,得到石膏砂浆粉体。 Mix 1000g phosphogypsum (pH=3.0) with 250g steel slag powder (pH=9.5), calcined at 150℃ for 0.5 hours, and then ball mill in a ball mill for 1 hour to obtain a pH of about 6.5 and a specific surface area of 5500cm 2 /g composite powder material, then add 200g 40 mesh quartz sand, 100g alumina powder with a particle size of 50nm to 100nm, 0.8g sodium citrate, 1.0g polydimethylsiloxane, hydroxypropyl methyl 1.0 g of base cellulose ether, 0.5 g of polycarboxylic acid water reducing agent and 5 g of redispersible latex powder were thoroughly mixed to obtain gypsum mortar powder.
实施例15Example 15
将1000g磷石膏(pH值=3.0)与250g钢渣粉(pH值=9.5)混合,于130℃温度下煅烧1小时,再在球磨机中球磨1小时,获得pH值为6.0左右、比表面积为5000cm 2/g的复合粉体材料,再加入40目高炉矿渣粉250g、粒径为50nm至100nm的碳化硅粉体80g、柠檬酸0.8g、聚二甲基硅氧烷1.2g、羟丙基甲基纤维素醚1.0g、聚羧酸减水剂0.3g和可再分散性乳胶粉5g进行充分混合,得到石膏砂浆粉体。 Mix 1000g phosphogypsum (pH=3.0) with 250g steel slag powder (pH=9.5), calcinate at 130℃ for 1 hour, and then ball mill for 1 hour in a ball mill to obtain a pH of about 6.0 and a specific surface area of 5000cm 2 /g of composite powder material, then add 250g of 40 mesh blast furnace slag powder, 80g of silicon carbide powder with particle size of 50nm to 100nm, 0.8g of citric acid, 1.2g of polydimethylsiloxane, and hydroxypropyl methyl 1.0 g of base cellulose ether, 0.3 g of polycarboxylic acid water reducing agent and 5 g of redispersible latex powder were thoroughly mixed to obtain gypsum mortar powder.
实施例16Example 16
将1000g磷石膏(pH值=3.0)与200g钢渣粉(pH值=9.5)混合,于130℃温度下煅烧0.5小时,再在球磨机中球磨1小时,获得pH值为5.8左右、比表面积为4500cm 2/g的复合粉体材料,再加入40目高炉矿渣粉300g、粒径为50nm至100nm的氧化锌粉体100g、柠檬酸1.0g、聚二甲基硅氧烷0.6g、羟丙基甲基纤维素醚1.2g、聚羧酸减水剂0.8g和可再分散性乳胶粉5g进行充分混合,得到石膏砂浆粉体。 Mix 1000g of phosphogypsum (pH=3.0) with 200g of steel slag powder (pH=9.5), calcined at 130°C for 0.5 hours, and then ball mill in a ball mill for 1 hour to obtain a pH of about 5.8 and a specific surface area of 4500cm 2 /g of composite powder material, then add 300g of 40 mesh blast furnace slag powder, 100g of zinc oxide powder with particle size of 50nm to 100nm, 1.0g of citric acid, 0.6g of polydimethylsiloxane, and hydroxypropyl methyl 1.2 g of base cellulose ether, 0.8 g of polycarboxylic acid water reducing agent and 5 g of redispersible latex powder were thoroughly mixed to obtain gypsum mortar powder.
实施例17Example 17
将1000g磷石膏(pH值=3.0)与150g钢渣粉(pH值=9.5)混合,于140℃温度下煅烧0.5小时,再在球磨机中球磨1小时,获得pH值为5.5左右、比表面积为4000cm 2/g的复合粉体材料,再加入40目高炉矿渣粉300g、酒石酸0.6g、聚二甲基硅氧烷1.0g、羟丙基甲基纤维素醚1.0g、聚羧酸减水剂0.5g和可再分散性乳胶粉5g进行充分混合,得到石膏砂浆粉体。 Mix 1000g of phosphogypsum (pH=3.0) with 150g of steel slag powder (pH=9.5), calcined at 140℃ for 0.5 hours, and then ball mill in a ball mill for 1 hour to obtain a pH of about 5.5 and a specific surface area of 4000cm 2 /g of composite powder material, then add 300g of 40 mesh blast furnace slag powder, 0.6g of tartaric acid, 1.0g of polydimethylsiloxane, 1.0g of hydroxypropyl methylcellulose ether, and 0.5 of polycarboxylic acid water reducer g and 5 g of redispersible latex powder are thoroughly mixed to obtain gypsum mortar powder.
实施例18Example 18
将1000g磷石膏(pH值=3.0)与150g钢渣粉(pH值=9.5)混合,于140℃温度下煅烧0.5小时,再在球磨机中球磨1小时,获得pH值为5.5左右、比表面积为4000cm 2/g的复合粉体材料,再加入40目高炉矿渣粉300g、粒径为50nm至100nm的碳纳米管50g、酒石酸钠0.6g、聚二甲基硅氧烷1.0g、羟丙基甲基纤维素醚1.0g、聚羧酸减水剂0.5g和可再分散性乳胶粉2g进行充分混合,得到石膏砂浆粉体。 Mix 1000g of phosphogypsum (pH=3.0) with 150g of steel slag powder (pH=9.5), calcined at 140℃ for 0.5 hours, and then ball mill in a ball mill for 1 hour to obtain a pH of about 5.5 and a specific surface area of 4000cm 2 /g of composite powder material, then add 300g of 40 mesh blast furnace slag powder, 50g of carbon nanotubes with a particle size of 50nm to 100nm, 0.6g of sodium tartrate, 1.0g of polydimethylsiloxane, and hydroxypropyl methyl 1.0 g of cellulose ether, 0.5 g of polycarboxylic acid water reducing agent and 2 g of redispersible latex powder were thoroughly mixed to obtain gypsum mortar powder.
对比例6Comparative example 6
将1000g磷石膏(pH值=3.0)与10g生石灰混合,于140℃温度下煅烧1小时,再在球磨机中球磨1小时,获得pH值=6.0左右、比表面积为5500cm 2/g的复合粉体材料,再加入40目高炉矿渣粉300g、柠檬酸钠0.6g、聚二甲基硅氧烷1.0g、羟丙基甲基纤维素醚0.8g、聚羧酸减水剂0.5g和可再分散性乳胶粉5g进行充分混合,得到石膏砂浆粉体。 Mix 1000g of phosphogypsum (pH=3.0) with 10g of quicklime, calcined at 140℃ for 1 hour, and then ball mill for 1 hour in a ball mill to obtain a composite powder with pH=6.0 and a specific surface area of 5500cm 2 /g Materials, add 300g of 40 mesh blast furnace slag powder, 0.6g of sodium citrate, 1.0g of polydimethylsiloxane, 0.8g of hydroxypropyl methylcellulose ether, 0.5g of polycarboxylic acid water reducing agent and redispersible Mix 5 g of sexual latex powder thoroughly to obtain gypsum mortar powder.
对比例7Comparative example 7
将1000g磷石膏(pH值=3.2)与10g生石灰混合,于150℃温度下煅烧0.5小时,再在球磨机中球磨,得到pH值为6.5左右、勃氏比表面积达 4000cm 2/g的粉体,再加入水泥100g、40目石英砂200g、柠檬酸钠0.8g、聚二甲基硅氧烷1.0g、羟丙基甲基纤维素醚1.0g、聚羧酸0.5g和可再分散性乳胶粉5g进行充分混合,得到石膏砂浆粉体。 Mix 1000g of phosphogypsum (pH=3.2) with 10g of quicklime, calcined at 150°C for 0.5 hours, and then ball mill in a ball mill to obtain a powder with a pH of about 6.5 and a Blaine specific surface area of 4000cm 2 /g. Then add 100g of cement, 200g of 40 mesh quartz sand, 0.8g of sodium citrate, 1.0g of polydimethylsiloxane, 1.0g of hydroxypropyl methylcellulose ether, 0.5g of polycarboxylic acid and redispersible latex powder 5g is thoroughly mixed to obtain gypsum mortar powder.
测试例4Test case 4
根据中华人民共和国建材行业标准JC/T 1023-2007《石膏基自流平砂浆》测试由上述实施例13至实施例18和对比例6至对比例7制备的石膏砂浆粉体制成的自流平砂浆的流动性能、凝结时间、强度和收缩率性能;根据中国国家标准GB/T10295-2008《绝热材料稳态热阻及有关特性的测定热流计法》及ASTM C518-04《用热流计法测定稳态热通量和热传递特性的试验方法》,采用平板热流计法,测试由上述实施例13至实施例18和对比例6至对比例7制备的石膏砂浆粉体制成的自流平砂浆的导热系数。测试结果如表4所示。According to the People's Republic of China Building Materials Industry Standard JC/T 1023-2007 "Gypsum-based Self-Leveling Mortar", the self-leveling mortar made from the gypsum mortar powder prepared in the above Examples 13 to 18 and Comparative Examples 6 to 7 was tested According to the Chinese national standard GB/T10295-2008 "Determination of steady-state thermal resistance and related characteristics of thermal insulation materials by heat flow meter method" and ASTM C518-04 "Determination of stability by heat flow meter method" Test method for state heat flux and heat transfer characteristics", using the flat heat flow meter method to test the self-leveling mortar made from the gypsum mortar powder prepared in the above Examples 13 to 18 and Comparative Examples 6 to 7 Thermal Conductivity. The test results are shown in Table 4.
表4Table 4
Figure PCTCN2019103405-appb-000004
Figure PCTCN2019103405-appb-000004
可以看出,采用本申请实施例13至实施例18的石膏砂浆粉体制得的自流平砂浆的流动度损失、凝结时间、强度、收缩率与对比例6至对比例7的 石膏砂浆粉体制得的自流平砂浆相近或更好,均满足JC/T 1023-2007的要求,说明钢渣和导热材料的引入对砂浆的性能没有不利影响,采用磷石膏和钢渣能够完全代替水泥,从而降低生产成本和实现固体废弃物的资源再利用。此外,通过对比实施例13、实施例17与对比例6、对比例7可以看出,钢渣粉的添加可以明显提高砂浆的导热系数;通过对比实施例14、15、16、18与实施例13、17可以看出,导热材料的添加可以进一步提高砂浆的导热系数,使得本申请实施例的石膏砂浆的导热性能明显优于对比例的石膏砂浆,进而使得本申请实施例的磷石膏自流平砂浆可以用于地暖管道间隙填充及上层覆面。It can be seen that the fluidity loss, setting time, strength, and shrinkage rate of the self-leveling mortar obtained using the gypsum mortar powder system of Example 13 to Example 18 of the present application are compared with those of the gypsum mortar powder system of Comparative Example 6 to Comparative Example 7. The self-leveling mortar is similar or better, and meets the requirements of JC/T 1023-2007, indicating that the introduction of steel slag and thermal conductive materials has no adverse effect on the performance of the mortar. The use of phosphogypsum and steel slag can completely replace cement, thereby reducing production costs and Realize the reuse of solid waste resources. In addition, by comparing Example 13, Example 17 with Comparative Example 6, and Comparative Example 7, it can be seen that the addition of steel slag powder can significantly improve the thermal conductivity of the mortar; by comparing Examples 14, 15, 16, 18 and Example 13 17. It can be seen that the addition of thermally conductive materials can further improve the thermal conductivity of the mortar, so that the thermal conductivity of the gypsum mortar in the example of the application is significantly better than that of the gypsum mortar in the comparative example, thereby making the phosphogypsum self-leveling mortar in the example of the application It can be used for gap filling and upper cladding of floor heating pipes.
本公开内容是本申请实施例的原则的示例,并非对本申请作出任何形式上或实质上的限定,或将本申请限定到具体的实施方案。对本领域的技术人员而言,很显然本申请实施例的技术方案的要素、方法和系统等,可以进行变动、改变、改动、演变,而不背离如上所述的本申请的实施例、技术方案的,如权利要求中所定义的原理、精神和范围。这些变动、改变、改动、演变的实施方案均包括在本申请的等同实施例内,这些等同实施例均包括在本申请的由权利要求界定的范围内。虽然可以许多不同形式来使本申请实施例具体化,但此处详细描述的是本申请的一些实施方案。此外,本申请的实施例包括此处所述的各种实施方案的一些或全部的任意可能的组合,也包括在本申请的由权利要求界定的范围内。在本申请中或在任一个引用的专利、引用的专利申请或其它引用的资料中任何地方所提及的所有专利、专利申请和其它引用资料据此通过引用以其整体并入。The present disclosure is an example of the principles of the embodiments of the application, and does not limit the application in any form or substance, or limit the application to specific embodiments. To those skilled in the art, it is obvious that the elements, methods, and systems of the technical solutions of the embodiments of the present application can be changed, changed, modified, and evolved without departing from the embodiments and technical solutions of the present application as described above. , As defined in the claims, the principle, spirit and scope. The implementation schemes of these changes, changes, modifications, and evolutions are all included in the equivalent embodiments of the present application, and these equivalent embodiments are all included in the scope defined by the claims of the present application. Although the embodiments of the present application can be embodied in many different forms, some embodiments of the present application are described in detail here. In addition, the examples of the present application include any possible combination of some or all of the various embodiments described herein, and are also included in the scope of the present application defined by the claims. All patents, patent applications and other cited materials mentioned in this application or anywhere in any cited patent, cited patent application or other cited materials are hereby incorporated by reference in their entirety.
以上公开内容规定为说明性的而不是穷尽性的。对于本领域技术人员来说,本说明书会暗示许多变化和可选择方案。所有这些可选择方案和变化旨在被包括在本权利要求的范围内,其中术语“包括”意思是“包括,但不限于”。The above disclosure is provided as illustrative rather than exhaustive. For those skilled in the art, this description will suggest many changes and alternatives. All these alternatives and variations are intended to be included within the scope of the claims, where the term "including" means "including, but not limited to."
在此完成了对本申请可选择的实施方案的描述。本领域技术人员可认识到此处所述的实施方案的其它等效变换,这些等效变换也为由附于本文的权利要求所包括。This completes the description of the alternative embodiments of the application. Those skilled in the art may recognize other equivalent transformations of the embodiments described herein, and these equivalent transformations are also encompassed by the claims attached herein.

Claims (14)

  1. 一种磷石膏自流平砂浆,所述磷石膏自流平砂浆的制备原料包括磷石膏和固体废弃物,并且不包括水泥,所述固体废弃物选自赤泥、造纸白泥和钢渣中的任意一种或多种。A phosphogypsum self-leveling mortar. The raw materials for the preparation of the phosphogypsum self-leveling mortar include phosphogypsum and solid waste, and do not include cement. The solid waste is selected from any one of red mud, papermaking white mud and steel slag Kind or more.
  2. 根据权利要求1所述的磷石膏自流平砂浆,其中,以所述磷石膏的添加量为100重量份计,所述赤泥的添加量为10重量份至20重量份。The phosphogypsum self-leveling mortar according to claim 1, wherein the addition amount of the red mud is 10 to 20 parts by weight based on 100 parts by weight of the addition of the phosphogypsum.
  3. 根据权利要求1或2所述的磷石膏自流平砂浆,其中,所述赤泥为烧结法赤泥。The phosphogypsum self-leveling mortar according to claim 1 or 2, wherein the red mud is sintered red mud.
  4. 根据权利要求1至3中任一项所述的磷石膏自流平砂浆,其中,以所述磷石膏的添加量为100重量份计,所述造纸白泥的添加量为8重量份至15重量份。The phosphogypsum self-leveling mortar according to any one of claims 1 to 3, wherein, based on the addition amount of the phosphogypsum being 100 parts by weight, the addition amount of the papermaking white mud is 8 parts by weight to 15 parts by weight Copies.
  5. 根据权利要求1至4中任一项所述的磷石膏自流平砂浆,其中,以所述磷石膏的添加量为100重量份计,所述钢渣的添加量为15重量份至30重量份。The phosphogypsum self-leveling mortar according to any one of claims 1 to 4, wherein, based on the addition amount of the phosphogypsum being 100 parts by weight, the addition amount of the steel slag is 15 to 30 parts by weight.
  6. 根据权利要求1至5中任一项所述的磷石膏自流平砂浆,所述磷石膏自流平砂浆的制备原料还包括导热材料。The phosphogypsum self-leveling mortar according to any one of claims 1 to 5, wherein the raw material for preparing the phosphogypsum self-leveling mortar further comprises a thermally conductive material.
  7. 根据权利要求6所述的磷石膏自流平砂浆,其中,以所述磷石膏的添加量为100重量份计,所述导热材料的添加量为5重量份至10重量份。The phosphogypsum self-leveling mortar according to claim 6, wherein, based on 100 parts by weight of the added phosphogypsum, the added amount of the thermally conductive material is 5 to 10 parts by weight.
  8. 根据权利要求6或7所述的磷石膏自流平砂浆,其中,所述导热材料选自氧化铝、氧化锌、碳化硅、碳纳米管、氮化铝和氮化硼中的任意一种或多种。The phosphogypsum self-leveling mortar according to claim 6 or 7, wherein the thermally conductive material is selected from any one or more of alumina, zinc oxide, silicon carbide, carbon nanotubes, aluminum nitride and boron nitride Kind.
  9. 根据权利要求1至8中任一项所述的磷石膏自流平砂浆,所述磷石膏自流平砂浆的制备原料还包括骨料、缓凝剂、消泡剂、保水剂、减水剂和可再分散性乳胶粉,并且以所述磷石膏的添加量为100重量份计,所述骨料的添加量为20重量份至50重量份,所述缓凝剂的添加量为0.06重量份至0.1重量份,所述消泡剂的添加量为0.06重量份至0.12重量份,所述保水剂的添加量为0.06重量份至0.12重量份,所述减水剂的添加量为0.03重量份至0.08重量份,所述可再分散性乳胶粉的添加量为0.2重量份至0.7重量份。The phosphogypsum self-leveling mortar according to any one of claims 1 to 8, wherein the raw materials for preparing the phosphogypsum self-leveling mortar further include aggregates, retarders, defoamers, water-retaining agents, water-reducing agents, and Redispersible latex powder, and based on 100 parts by weight of the added phosphogypsum, the added amount of the aggregate is 20 parts by weight to 50 parts by weight, and the added amount of the retarder is 0.06 parts by weight to 0.1 parts by weight, the addition amount of the defoamer is 0.06 parts by weight to 0.12 parts by weight, the addition amount of the water-retaining agent is 0.06 parts by weight to 0.12 parts by weight, and the addition amount of the water reducing agent is 0.03 parts by weight to 0.08 parts by weight, and the added amount of the redispersible latex powder is 0.2 to 0.7 parts by weight.
  10. 根据权利要求1至9中任一项所述的磷石膏自流平砂浆,其中,所述磷石膏自流平砂浆的制备原料包括:100重量份磷石膏、10重量份至20重量份赤泥、40重量份至50重量份骨料、0.06重量份至0.1重量份缓凝剂、0.06重量份至0.12重量份消泡剂、0.06重量份至0.12重量份保水剂、0.03重量份至0.08重量份减水剂、0.2重量份至0.7重量份可再分散性乳胶粉;任选地,还包括5重量份至10重量份导热材料;或者,The phosphogypsum self-leveling mortar according to any one of claims 1 to 9, wherein the raw materials for preparing the phosphogypsum self-leveling mortar include: 100 parts by weight of phosphogypsum, 10 parts by weight to 20 parts by weight of red mud, 40 parts by weight Parts by weight to 50 parts by weight of aggregate, 0.06 parts by weight to 0.1 parts by weight of retarder, 0.06 parts by weight to 0.12 parts by weight of defoamer, 0.06 parts by weight to 0.12 parts by weight of water retaining agent, 0.03 parts by weight to 0.08 parts by weight of water reducing agent Agent, 0.2 parts by weight to 0.7 parts by weight of redispersible latex powder; optionally, 5 parts by weight to 10 parts by weight of thermally conductive material; or,
    所述磷石膏自流平砂浆的制备原料包括:100重量份磷石膏、8重量份至15重量份造纸白泥、40重量份至48重量份骨料、0.06重量份至0.1重量份缓凝剂、0.06重量份至0.12重量份消泡剂、0.06重量份至0.12重量份保水剂、0.03重量份至0.08重量份减水剂、0.2重量份至0.7重量份可再分散性乳胶粉;任选地,还包括5重量份至10重量份导热材料;或者,The raw materials for preparing the phosphogypsum self-leveling mortar include: 100 parts by weight of phosphogypsum, 8 parts by weight to 15 parts by weight of papermaking white mud, 40 parts by weight to 48 parts by weight of aggregate, 0.06 parts by weight to 0.1 parts by weight of retarder, 0.06 parts by weight to 0.12 parts by weight of defoamer, 0.06 parts by weight to 0.12 parts by weight of water-retaining agent, 0.03 parts by weight to 0.08 parts by weight of water reducing agent, 0.2 parts by weight to 0.7 parts by weight of redispersible latex powder; optionally, It also includes 5 parts by weight to 10 parts by weight of thermally conductive material; or,
    所述磷石膏自流平砂浆的制备原料包括:100重量份磷石膏、15重量份至30重量份钢渣、20重量份至30重量份骨料、0.06重量份至0.1重量份缓凝剂、0.06重量份至0.12重量份消泡剂、0.06重量份至0.12重量份保水剂、0.03重量份至0.08重量份减水剂、0.2重量份至0.7重量份可再分散性乳胶粉;任选地,还包括5重量份至10重量份导热材料。The raw materials for preparing the phosphogypsum self-leveling mortar include: 100 parts by weight of phosphogypsum, 15 parts by weight to 30 parts by weight of steel slag, 20 parts by weight to 30 parts by weight of aggregate, 0.06 parts by weight to 0.1 parts by weight of retarder, 0.06 parts by weight Parts by weight to 0.12 parts by weight of defoamer, 0.06 parts by weight to 0.12 parts by weight of water-retaining agent, 0.03 parts by weight to 0.08 parts by weight of water reducing agent, 0.2 parts by weight to 0.7 parts by weight of redispersible latex powder; optionally, further comprising 5 parts by weight to 10 parts by weight of thermally conductive material.
  11. 根据权利要求9或10所述的磷石膏自流平砂浆的制备方法,所述制备方法包括:The preparation method of phosphogypsum self-leveling mortar according to claim 9 or 10, the preparation method comprising:
    将所述磷石膏与所述固体废弃物混合,煅烧,球磨;以及Mixing the phosphogypsum with the solid waste, calcining, and ball milling; and
    将球磨后的磷石膏与固体废弃物与骨料、缓凝剂、消泡剂、保水剂、减水剂、可再分散性乳胶粉和任选地导热材料混合。The ball-milled phosphogypsum and solid waste are mixed with aggregate, retarder, defoamer, water-retaining agent, water-reducing agent, redispersible latex powder, and optionally thermal conductive material.
  12. 根据权利要求11所述的制备方法,其中,所述煅烧的温度为120℃至150℃,时间为0.5小时至1小时。The preparation method according to claim 11, wherein the calcination temperature is 120°C to 150°C, and the time is 0.5 hour to 1 hour.
  13. 根据权利要求11或12所述的制备方法,其中,球磨后的磷石膏与固体废弃物的勃氏比表面积为4000cm 2/g至5500cm 2/g。 The preparation method according to claim 11 or 12, wherein the Blaine specific surface area of the phosphogypsum and solid waste after ball milling is 4000 cm 2 /g to 5500 cm 2 /g.
  14. 根据权利要求1至10中任一项所述的磷石膏自流平砂浆在地暖管道间隙填充及上层覆面中的应用。Application of the phosphogypsum self-leveling mortar according to any one of claims 1 to 10 in gap filling and upper cladding of floor heating pipelines.
PCT/CN2019/103405 2019-04-29 2019-08-29 Ardealite self-leveling mortar, and preparation method therefor and application thereof WO2020220542A1 (en)

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CN201910354354.9 2019-04-29
CN201910354142.0A CN111606648A (en) 2019-04-29 2019-04-29 Gypsum-based heat-conducting self-leveling mortar and preparation method and application thereof
CN201910354093.0 2019-04-29
CN201910354143.5 2019-04-29
CN201910354143.5A CN111606649A (en) 2019-04-29 2019-04-29 Solid waste heat conduction self-leveling mortar and preparation method and application thereof
CN201910354093.0A CN111606647A (en) 2019-04-29 2019-04-29 Phosphogypsum self-leveling mortar and preparation method thereof
CN201910354354.9A CN111606651A (en) 2019-04-29 2019-04-29 Heat-conducting gypsum self-leveling mortar and preparation method and application thereof
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102424563A (en) * 2011-09-13 2012-04-25 同济大学 Desulfurized gypsum based antistatic self-leveling mortar and its preparation method
CN103274659A (en) * 2013-05-13 2013-09-04 武汉理工大学 Ardealite-based self-leveling material
CN106316318A (en) * 2016-08-08 2017-01-11 许国东 Self-leveling wear-resistant floor and preparation method thereof
CN108164239A (en) * 2018-01-16 2018-06-15 四川华邦保和涂料有限公司 A kind of preparation method of the water-fast gravity flowing levelling mortar of phosphorus paring stone cream base

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102424563A (en) * 2011-09-13 2012-04-25 同济大学 Desulfurized gypsum based antistatic self-leveling mortar and its preparation method
CN103274659A (en) * 2013-05-13 2013-09-04 武汉理工大学 Ardealite-based self-leveling material
CN106316318A (en) * 2016-08-08 2017-01-11 许国东 Self-leveling wear-resistant floor and preparation method thereof
CN108164239A (en) * 2018-01-16 2018-06-15 四川华邦保和涂料有限公司 A kind of preparation method of the water-fast gravity flowing levelling mortar of phosphorus paring stone cream base

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