WO2023221413A1 - 一种乳液聚合物增强高性能混凝土井盖及其制备方法 - Google Patents

一种乳液聚合物增强高性能混凝土井盖及其制备方法 Download PDF

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WO2023221413A1
WO2023221413A1 PCT/CN2022/129698 CN2022129698W WO2023221413A1 WO 2023221413 A1 WO2023221413 A1 WO 2023221413A1 CN 2022129698 W CN2022129698 W CN 2022129698W WO 2023221413 A1 WO2023221413 A1 WO 2023221413A1
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parts
emulsion polymer
performance concrete
reinforced high
powder
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PCT/CN2022/129698
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French (fr)
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苏新禄
时磊
毛荣良
钱佳佳
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苏州市兴邦化学建材有限公司
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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
    • C04B28/02Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/04Portland cements
    • 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
    • C04B28/02Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/06Aluminous cements
    • 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
    • C04B28/14Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
    • C04B28/145Calcium sulfate hemi-hydrate with a specific crystal form
    • C04B28/146Calcium sulfate hemi-hydrate with a specific crystal form alpha-hemihydrate
    • 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
    • C04B28/14Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
    • C04B28/145Calcium sulfate hemi-hydrate with a specific crystal form
    • C04B28/147Calcium sulfate hemi-hydrate with a specific crystal form beta-hemihydrate
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/12Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14Covers for manholes or the like; Frames for covers
    • 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
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/20Mortars, concrete or artificial stone characterised by specific physical values for the density
    • 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
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

Definitions

  • the invention belongs to the technical field of concrete materials, and in particular relates to an emulsion polymer reinforced high-performance concrete manhole cover and a preparation method thereof.
  • Ultra-high performance concrete (hereinafter referred to as UHPC) is denser, stronger, and more wear-resistant than ordinary concrete. Under the same load conditions, ultra-high performance concrete can be made thinner and lighter than ordinary concrete.
  • UHPC Ultra-high performance concrete
  • the strength of the material cannot be fully developed under natural curing conditions, so steam curing or other curing methods are generally used.
  • the compressive strength is high, the flexural strength of inorganic cementitious materials is relatively low relative to the compressive strength. The material has a high modulus and its vibration and impact resistance can be further improved.
  • the main technical problem solved by the present invention is to provide an emulsion polymer reinforced high-performance concrete manhole cover and a preparation method thereof.
  • the flexural strength is significantly improved, especially the early flexural strength, the wear resistance is significantly improved, the material modulus is reduced, and the vibration resistance is improved. Impact performance is improved and weather resistance is improved.
  • one technical solution adopted by the present invention is to provide an emulsion polymer reinforced high-performance concrete manhole cover, including inorganic gelling materials, emulsion polymers, aggregate fillers, powder fillers, additives and toners , each component is calculated based on 1000 parts by mass: 250-500 parts of inorganic gelling material, 20-150 parts of emulsion polymer, 200-500 parts of aggregate filler, 50-300 parts of powder filler, 0.5-10 parts of additives , 0.1-50 parts of toner.
  • the inorganic cementing material is one or more combinations of cement, mineral powder, gypsum or silica fume;
  • the cement is Portland cement, sulfoaluminate cement or aluminate
  • One or several combinations in cement 52.5 Portland cement is preferred;
  • mineral powder is a product that meets or exceeds S95 grade;
  • silica fume is a product with a silica content of not less than 85%, and a silica content of 90% is preferred
  • silica fume and gypsum ⁇ or ⁇ hemihydrate gypsum is used alone or in combination. It is used with sulphoaluminate cement or Portland cement-aluminate cement system. ⁇ hemihydrate gypsum is preferred.
  • the emulsion polymer is styrene-acrylic emulsion, pure acrylic emulsion or silicon-acrylic emulsion. Pure acrylic emulsion or silicon-acrylic emulsion with better weather resistance is preferred, and preferably has good compatibility with cement and glass. Pure acrylic emulsion with a melting temperature higher than 10°C.
  • the aggregate filler is one or more combinations of gravel, silica sand, silicon carbide sand or corundum sand. Aggregates with Mohs hardness ⁇ 7 and crush value ⁇ 10% are preferred. .
  • the powder filler is one or more combinations of quartz powder, silicon carbide sand powder, alumina powder, heavy calcium powder or microbead powder.
  • the additive is one or more combinations of water reducing agent, defoaming agent, dispersant or cross-linking agent.
  • the toner is used for colored manhole covers, specifically liquid color paste or solid toner.
  • a preparation method for emulsion polymer-reinforced high-performance concrete manhole covers including the following steps:
  • the prepared material body is poured into a special mold and allowed to stand for a period of time to solidify and release from the mold, thereby obtaining an emulsion polymer-reinforced high-performance concrete manhole cover.
  • the mixture in the steps S1 and S2, the mixture is stirred at a rotation speed of 300 r/min for 1 minute, and in the steps S3 and S4, the mixture is stirred at a rotation speed of 60 r/min for 3 minutes.
  • step S5 the pouring adopts vibration molding process
  • the material of the special mold is PVA plastic mold
  • the frame is made of steel.
  • the beneficial effects of the present invention are: the emulsion polymer reinforced high-performance concrete manhole cover and its preparation method pointed out in the present invention have significantly improved flexural strength, especially early flexural strength, significantly improved wear resistance, and reduced material modulus. The vibration and impact resistance is improved, and the weather resistance is improved.
  • the concrete of emulsion polymer-free concrete manhole cover is composed of the following raw materials in parts by weight (total parts are 1000): 300 parts of cement, 590 parts of aggregate, 10 parts of color paste and 100 parts of water.
  • the preparation method of resin-free concrete manhole cover specifically includes the following steps:
  • the aggregate described in S1 is a mixture of silica sand and gravel, with a ratio of 4:6; the silica sand is graded from 4 mesh to 100 mesh, Mohs hardness ⁇ 7, gravel particle size 5-15mm, crushing value ⁇ 10% .
  • the mold used to produce manhole covers described in S4 is made of PVA plastic mold, and the frame is made of steel.
  • the pouring process during the production of the manhole cover adopts a vibration molding process.
  • Emulsion polymer is used to reinforce UHPC concrete manhole covers to produce emulsion polymer-reinforced high-performance concrete manhole covers, which can reduce material shrinkage, increase the wear resistance of the material surface, and improve the material's vibration resistance without changing the molding and pouring process. impact strength, improve the weather resistance of materials, etc. Colored products also help improve color uniformity.
  • the present invention points out an emulsion polymer reinforced high-performance concrete manhole cover and its preparation method.
  • the flexural strength is significantly improved, especially the early flexural strength, the wear resistance is significantly improved, the material modulus is reduced, and the vibration resistance is reduced. Impact performance is improved and weather resistance is improved.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

本发明公开了一种乳液聚合物增强高性能混凝土井盖及其制备方法,包括无机胶凝材料、乳液聚合物、骨料填料、粉料填料、添加剂和调色剂,各组分按质量份1000份计为:无机胶凝材料250-500份,乳液聚合物20-150份,骨料填料200-500份,粉料填料50-300份,添加剂0.5-10份,0.1-50份调色剂。本发明抗折强度显著提高,特别是早期抗折强度,耐磨性显著提高,材料模量降低,抗振动冲击性能提高,耐候性提高。

Description

一种乳液聚合物增强高性能混凝土井盖及其制备方法 技术领域
本发明属于混凝土材料技术领域,尤其涉及一种乳液聚合物增强高性能混凝土井盖及其制备方法。
背景技术
普通的钢筋混凝土井盖自身强度与耐久性较低,使用寿命短,增大了日常的检修工作量。超高性能混凝土(以下简称UHPC)比普通混凝土更密实、强度更高、更耐磨等,同样载荷条件下使用超高性能混凝土相比普通混凝土可以做的更薄、更轻等。但因为胶凝材料用量较高、用水量低,自然养护条件下材料的强度不能充分发展,一般采用蒸养或其它养护方式。虽然抗压强度很高,但无机胶凝材料的抗弯强度相对抗压强度较低。材料模量高,抗振动冲击性能还可以进一步提升。
发明内容
本发明主要解决的技术问题是提供一种乳液聚合物增强高性能混凝土井盖及其制备方法,抗折强度显著提高,特别是早期抗折强度,耐磨性显著提高,材料模量降低,抗振动冲击性能提高,耐候性提高。
为解决上述技术问题,本发明采用的一个技术方案是:提供一种乳液聚合物增强高性能混凝土井盖,包括无机胶凝材料、乳液聚合物、骨料填料、粉料填料、添加剂和调色剂,各组分按质量份1000份计为:无机胶凝材料250-500份,乳液聚合物20-150份,骨料填料200-500份,粉料填料50-300份,添加剂0.5-10份,0.1-50份调色剂。
在本发明一个较佳实施例中,所述无机胶凝材料为水泥、矿粉、石膏或硅 灰的一种或几种配合;水泥为硅酸盐水泥、硫铝酸盐水泥或铝酸盐水泥中的一种或几种配合,首选52.5硅酸盐水泥;矿粉为满足或高于S95等级的产品;硅灰为二氧化硅含量不低于85%,首选二氧化硅含量达90%以上的硅灰;石膏选用α或β半水石膏单独或配合,用于配合硫铝酸盐水泥或者硅酸盐水泥-铝酸盐水泥体系使用,首选α半水石膏。
在本发明一个较佳实施例中,所述乳液聚合物为苯丙乳液、纯丙乳液或硅丙乳液,首选耐候性更好的纯丙乳液或硅丙乳液,优选与水泥匹配性好、玻璃化温度高于10℃的纯丙乳液。
在本发明一个较佳实施例中,所述骨料填料为碎石、硅砂、碳化硅砂或刚玉砂的一种或几种配合,首选莫氏硬度≥7、压碎值≤10%的骨料。
在本发明一个较佳实施例中,所述粉料填料为石英粉、碳化硅砂粉、氧化铝粉、重钙粉或微珠粉中的一种或几种配合。
在本发明一个较佳实施例中,所述添加剂为减水剂、消泡剂、分散剂或交联剂的一种或几种配合。
在本发明一个较佳实施例中,所述调色剂为有颜色的井盖使用,具体选用液体色浆或固体色粉。
提供一种应用于乳液聚合物增强高性能混凝土井盖的制备方法,包括如下步骤:
S1、将20-150份乳液聚合物加入到搅拌器,加入一定量的水,搅拌一段时间;
S2、加入0.1-50份调色剂,搅拌一段时间;
S3、在混合物中加入250-500份无机胶凝材料、50-300份粉料填料和200-500份骨料填料,搅拌一段时间;
S4、加入0.5-10份添加剂,搅拌一段时间;
S5、搅拌均匀后将制成的料体浇筑于专用模具内,自然放置一段时间即可凝结脱模,得到乳液聚合物增强高性能混凝土井盖。
在本发明一个较佳实施例中,所述S1和S2步骤中,以300r/min转速搅拌1min,所述S3和S4步骤中,以60r/min转速搅拌3min。
在本发明一个较佳实施例中,所述S5步骤中,浇筑采用震动成型工艺,专用模具的材质为PVA塑胶模,边框为钢制包边。
本发明的有益效果是:本发明指出的一种乳液聚合物增强高性能混凝土井盖及其制备方法,抗折强度显著提高,特别是早期抗折强度,耐磨性显著提高,材料模量降低,抗振动冲击性能提高,耐候性提高。
具体实施方式
下面将对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅是本发明的一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例,都属于本发明保护的范围。
实施例一
将110份纯丙乳液加入到搅拌器,加入40份水,以300r/min转速搅拌1min;加入0.1-50份水性色浆,以300r/min转速搅拌1min;在混合物中加入350份水泥、200份300目以上且莫氏硬度≥8的石英粉及290份硅砂与碎石的混合物,比例为4:6;其中硅砂级配4目~100目、莫氏硬度≥7,碎石粒径5-15mm、压碎值≤10%,以60r/min转速搅拌3min;加入2.5份减水剂、1.5份消泡剂和1份分散剂,以60r/min转速搅拌3min;搅拌均匀后将制成的料体采用震动成型工艺浇筑于PVA塑胶模内,自然放置6h即可凝结脱模,得到乳液聚合物增强高 性能混凝土井盖。
实施例二
将133份硅丙乳液加入到搅拌器,加入50份水,以300r/min转速搅拌1min;加入10份水性色浆,以300r/min转速搅拌1min;在混合物中加入230份水泥、130份300目以上且莫氏硬度≥8的石英粉、130份S95矿粉及360份碳化硅砂、硅砂与碎石的混合物,比例为1:3:6;其中碳化硅砂和硅砂级配4-100目、莫氏硬度≥7、碎石粒径5-15mm、压碎值≤10%,以60r/min转速搅拌3min;加入3.5减水剂份、1.5份消泡剂、1份分散剂及1份交联剂,以60r/min转速搅拌3min;搅拌均匀后将制成的料体采用震动成型工艺浇筑于PVA塑胶模内,自然放置6h即可凝结脱模,得到乳液聚合物增强高性能混凝土井盖。
实施例三
将150份玻璃化温度为15℃的苯丙乳液加入到搅拌器,加入50份水,以300r/min转速搅拌1min;加入10份水性色浆,以300r/min转速搅拌1min;在混合物中加入150份水泥、150份S105矿粉、100份300目以上且莫氏硬度≥8的石英粉及436份硅砂与碎石的混合物,比例为4:6;其中硅砂级配4目~100目、莫氏硬度≥7、碎石粒径5-15mm、压碎值≤10%,以60r/min转速搅拌3min;加入3份减水剂和1份消泡剂,以60r/min转速搅拌3min;搅拌均匀后将制成的料体采用震动成型工艺浇筑于PVA塑胶模内,自然放置8h即可凝结脱模,得到乳液聚合物增强高性能混凝土井盖。
实施例四
将80份玻璃化温度为25℃的纯丙乳液加入到搅拌器,加入100份水,以300r/min转速搅拌1min;加入20份水性色浆,以300r/min转速搅拌1min;在 混合物中加入207份水泥、200份300目以上且莫氏硬度≥8的石英粉、150份矿粉及340份硅砂与碎石的混合物,比例为4:6;其中硅砂级配4目~100目、莫氏硬度≥7、碎石粒径5-15mm、压碎值≤10%,以60r/min转速搅拌3min;加入2份减水剂和1份消泡剂,以60r/min转速搅拌3min;搅拌均匀后将制成的料体采用震动成型工艺浇筑于PVA塑胶模内,自然放置大于6h即可凝结脱模,得到乳液聚合物增强高性能混凝土井盖。
对比例
无乳液聚合物的混凝土井盖,其混凝土由以下重量份数(总份数为1000)的原料组成:水泥300份、骨料590份、色浆10份及水100份。
无树脂增强的混凝土井盖的制备方法,具体包括以下步骤:
S1、在搅拌器中加入水泥300份、骨料590份、黑色膏10份、水100份,60r/min转速搅拌3min;
S3、搅拌均匀后将制成的料体浇筑进专用模具内,自然放置6h即可凝结脱模,得到无乳液聚合物增强混凝土井盖。
其中:
S1中所述骨料为硅砂与碎石的混合物,比例为4:6;其中硅砂级配4目~100目、莫氏硬度≥7、碎石粒径5-15mm、压碎值≤10%。
S4中所述生产井盖采用的模具的材质为PVA塑胶模,边框为钢制包边。生产所述井盖过程中的浇筑采用震动成型工艺。
本申请实施例1-4与对比例具体检测结果如下表所示:
Figure PCTCN2022129698-appb-000001
Figure PCTCN2022129698-appb-000002
采用乳液聚合物对UHPC混凝土井盖进行增强,制成乳液聚合物增强高性能混凝土井盖,能在不改变成型浇筑工艺的前提下,降低材料收缩,增加材料表面的耐磨性能,提高材料的抗震动冲击强度,提高材料的耐候性等。有颜色的产品还有助于提升颜色均匀度。
综上所述,本发明指出的一种乳液聚合物增强高性能混凝土井盖及其制备方法,抗折强度显著提高,特别是早期抗折强度,耐磨性显著提高,材料模量降低,抗振动冲击性能提高,耐候性提高。
以上所述仅为本发明的实施例,并非因此限制本发明的专利范围,凡是利用本发明说明书内容所作的等效结构或等效流程变换,或直接或间接运用在其它相关的技术领域,均同理包括在本发明的专利保护范围内。

Claims (10)

  1. 一种乳液聚合物增强高性能混凝土井盖,其特征在于,包括无机胶凝材料、乳液聚合物、骨料填料、粉料填料、添加剂和调色剂,各组分按质量份1000份计为:无机胶凝材料250-500份,乳液聚合物20-150份,骨料填料200-500份,粉料填料50-300份,添加剂0.5-10份,0.1-50份调色剂。
  2. 根据权利要求1所述的乳液聚合物增强高性能混凝土井盖,其特征在于,所述无机胶凝材料为水泥、矿粉、石膏或硅灰的一种或几种配合;水泥为硅酸盐水泥、硫铝酸盐水泥或铝酸盐水泥中的一种或几种配合,首选52.5硅酸盐水泥;矿粉为满足或高于S95等级的产品;硅灰为二氧化硅含量不低于85%,首选二氧化硅含量达90%以上的硅灰;石膏选用α或β半水石膏单独或配合,用于配合硫铝酸盐水泥或者硅酸盐水泥-铝酸盐水泥体系使用,首选α半水石膏。
  3. 根据权利要求1所述的乳液聚合物增强高性能混凝土井盖,其特征在于,所述乳液聚合物为苯丙乳液、纯丙乳液或硅丙乳液,首选耐候性更好的纯丙乳液或硅丙乳液,优选与水泥匹配性好、玻璃化温度高于10℃的纯丙乳液。
  4. 根据权利要求1所述的乳液聚合物增强高性能混凝土井盖,其特征在于,所述骨料填料为碎石、硅砂、碳化硅砂或刚玉砂的一种或几种配合,首选莫氏硬度≥7、压碎值≤10%的骨料。
  5. 根据权利要求1所述的乳液聚合物增强高性能混凝土井盖,其特征在于,所述粉料填料为石英粉、碳化硅砂粉、氧化铝粉、重钙粉或微珠粉中的一种或几种配合。
  6. 根据权利要求1所述的乳液聚合物增强高性能混凝土井盖,其特征在于,所述添加剂为减水剂、消泡剂、分散剂或交联剂的一种或几种配合。
  7. 根据权利要求1所述的乳液聚合物增强高性能混凝土井盖,其特征在于, 所述调色剂为有颜色的井盖使用,具体选用液体色浆或固体色粉。
  8. 一种应用于权利要求1-7所述的乳液聚合物增强高性能混凝土井盖的制备方法,其特征在于,包括如下步骤:
    S1、将20-150份乳液聚合物加入到搅拌器,加入一定量的水,搅拌一段时间;
    S2、加入0.1-50份调色剂,搅拌一段时间;
    S3、在混合物中加入250-500份无机胶凝材料、50-300份粉料填料和200-500份骨料填料,搅拌一段时间;
    S4、加入0.5-10份添加剂,搅拌一段时间;
    S5、搅拌均匀后将制成的料体浇筑于专用模具内,自然放置一段时间即可凝结脱模,得到乳液聚合物增强高性能混凝土井盖。
  9. 根据权利要求8所述的乳液聚合物增强高性能混凝土井盖,其特征在于,所述S1和S2步骤中,以300r/min转速搅拌1min,所述S3和S4步骤中,以60r/min转速搅拌3min。
  10. 根据权利要求8所述的乳液聚合物增强高性能混凝土井盖,其特征在于,所述S5步骤中,浇筑采用震动成型工艺,专用模具的材质为PVA塑胶模,边框为钢制包边。
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