CN103342530A - Cement-based self-leveling mortar - Google Patents
Cement-based self-leveling mortar Download PDFInfo
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- CN103342530A CN103342530A CN2013102545499A CN201310254549A CN103342530A CN 103342530 A CN103342530 A CN 103342530A CN 2013102545499 A CN2013102545499 A CN 2013102545499A CN 201310254549 A CN201310254549 A CN 201310254549A CN 103342530 A CN103342530 A CN 103342530A
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- leveling mortar
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Abstract
The invention discloses a cement-based self-leveling mortar, comprising the following constituents by weight ratio: 200-450 parts of silicate cement, 50-100 parts of high-alumina cement, 350-500 parts of quartz sand, 100-250 parts of ground limestone, 30-100 parts of anhydrite, 0.5-2 parts of antifoaming agent, 3-10 parts of water reducing agent, 10-50 parts of redispersible emulsion powder, 0.5-3 parts of tartaric acid, 0.3-2 parts of lithium carbonate, 0.3-2 parts of methylcellulose and 3-10 parts of ethylene glycol. For the cement-based self-leveling mortar prepared by the invention, the 20min fluidity is more than 130mm, the 24h compressive strength is more than 6.0MPa and the breaking strength is more than 2.0MPa, the indexes all meet the national industry standard.
Description
Technical field
The present invention relates to a kind of cement-based self-leveling mortar.
Background technology
Gravity flowing levelling mortar is the dried type powder material that mixes that is become to be grouped into by various active, the scene is mixed water and can be used, launch through scraper slightly, can obtain high smooth basal plane, setting rate is fast, can walk in 24 hours, or carry out follow-up engineering (as shop timber floor, adamantine plate etc.), quick construction, easy is that the artificial levelling of tradition is incomparable.
Gravity flowing levelling mortar comprises gypsum base and cement-based self-leveling mortar, because gypsum base gravity flowing levelling mortar water tolerance resistance to abrasion inequality, use range is restricted.The key of cement-based self-leveling mortar is under the low water-cement ratio condition, improves the rheological property of material; Under the large fluidity prerequisite, require it to have good cohesiveness, prevent bleeding, segregation.
Summary of the invention
The objective of the invention is the defective that exists in the prior art in order to solve, providing a kind of can improve the cement-based self-leveling mortar of ultimate compression strength effectively than low water-cement ratio.
In order to achieve the above object, the invention provides a kind of cement-based self-leveling mortar, comprise the component of following weight proportion: silicate cement 200-450 part, high-alumina cement 50-100 part, quartz sand 350-500 part, water-ground limestone 100-250 part, anhydrite 30-100 part, redispersable latex powder 10-50 part, tartrate 0.5-3 part, Quilonum Retard 0.3-2 part, methylcellulose gum 0.3-2 part, hexylene glycol 3-10 part.
Preferred ingredient weight proportion: silicate cement 200-450 part, high-alumina cement 50-100 part, quartz sand 350-500 part, water-ground limestone 100-250 part, anhydrite 30-100 part, defoamer 0.5-2 part, water reducer 3-10 part, redispersable latex powder 10-50 part, tartrate 0.5-3 part, Quilonum Retard 0.3-2 part, methylcellulose gum 0.3-2 part, hexylene glycol 3-10 part.
Best composition weight proportion: 300 parts of silicate cements, 70 parts of high-alumina cements, 400 parts of quartz sands, 150 parts of water-ground limestones, 60 parts of anhydrite, 1 part of defoamer, 6 parts of water reducers, 30 parts of redispersable latex powders, 1.5 parts in tartrate, 1 part of Quilonum Retard, 1 part of methylcellulose gum, 6 parts of hexylene glycols.
The present invention has the following advantages compared to existing technology: the present invention mixes with high-alumina cement by water-ground limestone, wherein the carbonate microparticle can react with aluminum-containing mineral, generates the carbon calcium aluminate, thereby improves ultimate compression strength, reduce the inner aquation of mortar and heat up, effectively reduce cost.Adopt water reducer can effectively reduce the consumption of water and cement simultaneously, improve concrete intensity and weather resistance; Add polymkeric substance and can increase flowability, the water-retentivity of slip, the splitting resistance of improving material, weather resistance, the cohesive strength of raising material, wear resistance, tensile strength, shock resistance etc.Utilize methylcellulose gum effectively to avoid gravity flowing levelling mortar because of the thinner dehydration of fluid layer defective faster as water-holding agent; Utilize anhydrite as swelling agent, utilize hexylene glycol as reduction agent synergy, effectively carry out shrinkage-compensating.The present invention is by groping each set of dispense ratio, and the cement-based self-leveling mortar 20min degree of mobilization that makes is greater than 130mm, and 24h ultimate compression strength is greater than 6.0MPa, and folding strength all meets national sector standard (JC/T985-2005) greater than 2.0MPa.
Embodiment
Below in conjunction with specific embodiment cement-based self-leveling mortar of the present invention is elaborated.
Embodiment one
Cement-based self-leveling mortar: ordinary Portland cement (PO4205, PO52.5 all can) 200 parts, high-alumina cement (42.5,52.5 all can) 50 parts, 350 parts of quartz sands, 100 parts of water-ground limestones, 30 parts of anhydrite, 0.5 part of defoamer (poly-methyl cyclotetrasiloxane), water reducer (naphthalene water reducer, sulfonated lignin water reducer, polycarboxylate water-reducer all can) 3 parts, 10 parts of redispersable latex powders (ethane-acetic acid ethyenyl emulsion copolymer powder), 0.5 part in tartrate, 0.3 part of Quilonum Retard, 0.3 part of methylcellulose gum, 3 parts of hexylene glycols.
Embodiment two
Cement-based self-leveling mortar: 450 parts of silicate cements, 100 parts of high-alumina cements, 500 parts of quartz sands, 250 parts of water-ground limestones, 100 parts of anhydrite, 2 parts of defoamers, 10 parts of water reducers, 50 parts of redispersable latex powders, 3 parts in tartrate, 2 parts of Quilonum Retards, 2 parts of methylcellulose gum, 10 parts of hexylene glycols.
Embodiment three
Cement-based self-leveling mortar: 300 parts of silicate cements, 70 parts of high-alumina cements, 400 parts of quartz sands, 150 parts of water-ground limestones, 60 parts of anhydrite, 1 part of defoamer, 6 parts of water reducers, 30 parts of redispersable latex powders, 1.5 parts in tartrate, 1 part of Quilonum Retard, 1 part of methylcellulose gum, 6 parts of hexylene glycols.
After raw material mixes, stir with the water of 20%-22%, the mortar that obtains is through pumping, has the gravity flow flat characteristic after being cast on the basis, and the ultimate compression strength of sclerosis 1d, 3d, 28d is respectively 15MPa, 20MPa, 40MPa.
Claims (3)
1. cement-based self-leveling mortar, it is characterized in that: the component that comprises following weight proportion: silicate cement 200-450 part, high-alumina cement 50-100 part, quartz sand 350-500 part, water-ground limestone 100-250 part, anhydrite 30-100 part, redispersable latex powder 10-50 part, tartrate 0.5-3 part, Quilonum Retard 0.3-2 part, methylcellulose gum 0.3-2 part, hexylene glycol 3-10 part.
2. cement-based self-leveling mortar according to claim 1 is characterized in that: the component that comprises following weight proportion: silicate cement 200-450 part, high-alumina cement 50-100 part, quartz sand 350-500 part, water-ground limestone 100-250 part, anhydrite 30-100 part, defoamer 0.5-2 part, water reducer 3-10 part, redispersable latex powder 10-50 part, tartrate 0.5-3 part, Quilonum Retard 0.3-2 part, methylcellulose gum 0.3-2 part, hexylene glycol 3-10 part.
3. cement-based self-leveling mortar according to claim 1 is characterized in that: the component that comprises following weight proportion: 300 parts of silicate cements, 70 parts of high-alumina cements, 400 parts of quartz sands, 150 parts of water-ground limestones, 60 parts of anhydrite, 1 part of defoamer, 6 parts of water reducers, 30 parts of redispersable latex powders, 1.5 parts in tartrate, 1 part of Quilonum Retard, 1 part of methylcellulose gum, 6 parts of hexylene glycols.
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| CN2013102545499A CN103342530A (en) | 2013-06-25 | 2013-06-25 | Cement-based self-leveling mortar |
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| CN2013102545499A CN103342530A (en) | 2013-06-25 | 2013-06-25 | Cement-based self-leveling mortar |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105622029A (en) * | 2015-12-25 | 2016-06-01 | 江苏蓝圈新材料有限公司 | Cement-based self-leveling mortar |
| CN106673580A (en) * | 2016-12-30 | 2017-05-17 | 北京宝辰联合科技股份有限公司 | Cement-based self-leveling mortar |
| CN106699072A (en) * | 2015-11-12 | 2017-05-24 | 上海东大化学有限公司 | Cement-based self-leveling mortar and preparation method thereof |
| CN108059429A (en) * | 2017-11-28 | 2018-05-22 | 上海中冶环境工程科技有限公司 | A kind of gravity flowing levelling mortar and preparation method thereof |
| CN109626929A (en) * | 2019-01-07 | 2019-04-16 | 浙江建工创生建材科技有限公司 | A kind of thin layer gravity flowing levelling mortar of water proof anti-seepage |
| CN110590313A (en) * | 2019-10-28 | 2019-12-20 | 宋俊伟 | Light self-leveling mortar and preparation method thereof |
| CN113929406A (en) * | 2021-10-19 | 2022-01-14 | 广东凯恩德环保建材有限公司 | Novel wallboard bonding mortar |
| CN114853438A (en) * | 2022-05-27 | 2022-08-05 | 北京京鑫绿石干混砂浆有限公司 | Quick-drying type cement self-leveling mortar and production process thereof |
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| JP3730033B2 (en) * | 1998-11-05 | 2005-12-21 | 花王株式会社 | Self-leveling cement composition |
| CN101941824A (en) * | 2010-08-10 | 2011-01-12 | 上海宝元化学建材有限公司 | Self-leveling mortar of composite cement |
| CN102140026A (en) * | 2010-10-22 | 2011-08-03 | 中国建筑科学研究院 | Self-levelling material and preparation method thereof |
| CN102503321A (en) * | 2011-10-27 | 2012-06-20 | 北京东方雨虹防水技术股份有限公司 | Cement base self-leveling for cushion layer |
| CN102850030A (en) * | 2012-08-17 | 2013-01-02 | 苏州市德莱尔建材科技有限公司 | Cement-based self-leveling dry-mixed mortar |
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| CN101941824A (en) * | 2010-08-10 | 2011-01-12 | 上海宝元化学建材有限公司 | Self-leveling mortar of composite cement |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106699072A (en) * | 2015-11-12 | 2017-05-24 | 上海东大化学有限公司 | Cement-based self-leveling mortar and preparation method thereof |
| CN105622029A (en) * | 2015-12-25 | 2016-06-01 | 江苏蓝圈新材料有限公司 | Cement-based self-leveling mortar |
| CN106673580A (en) * | 2016-12-30 | 2017-05-17 | 北京宝辰联合科技股份有限公司 | Cement-based self-leveling mortar |
| CN108059429A (en) * | 2017-11-28 | 2018-05-22 | 上海中冶环境工程科技有限公司 | A kind of gravity flowing levelling mortar and preparation method thereof |
| CN108059429B (en) * | 2017-11-28 | 2020-11-13 | 上海中冶环境工程科技有限公司 | Self-leveling mortar for repairing damaged ground |
| CN109626929A (en) * | 2019-01-07 | 2019-04-16 | 浙江建工创生建材科技有限公司 | A kind of thin layer gravity flowing levelling mortar of water proof anti-seepage |
| CN110590313A (en) * | 2019-10-28 | 2019-12-20 | 宋俊伟 | Light self-leveling mortar and preparation method thereof |
| CN113929406A (en) * | 2021-10-19 | 2022-01-14 | 广东凯恩德环保建材有限公司 | Novel wallboard bonding mortar |
| CN114853438A (en) * | 2022-05-27 | 2022-08-05 | 北京京鑫绿石干混砂浆有限公司 | Quick-drying type cement self-leveling mortar and production process thereof |
| CN114853438B (en) * | 2022-05-27 | 2022-12-02 | 北京京鑫绿石干混砂浆有限公司 | Quick-drying type cement self-leveling mortar and production process thereof |
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Application publication date: 20131009 |