技术领域technical field
本发明涉及建筑材料技术领域，尤其涉及一种水泥基自流平砂浆及其制备方法。The invention relates to the technical field of building materials, in particular to a cement-based self-leveling mortar and a preparation method thereof.
背景技术Background technique
水泥基自流平砂浆是一种以水泥为主要胶凝材料，加入适宜的添加剂及细砂等混合而成，用于地面找平或饰面的新型地面材料。使用时只需按规定的水灰比范围加水拌和均匀，机械泵送或人工施工后，无需人工抹平，靠浆体在自身重力作用下流动形成平整表面。自流平材料具有流动性及稳定性好、施工简便、劳动强度低、光洁平整、强度值高、流平层厚度薄及耐水耐酸性良好等优点，是大型超市、商场、停车场、工厂车间、仓库等地面铺筑的理想材料，也是现在建筑地面施工的一个发展方向，市场潜力很大。Cement-based self-leveling mortar is a new type of ground material that uses cement as the main cementitious material and is mixed with suitable additives and fine sand. It is used for ground leveling or finishing. When using, you only need to add water according to the specified range of water-cement ratio and mix evenly. After mechanical pumping or manual construction, no manual smoothing is required, and the slurry flows under its own gravity to form a smooth surface. Self-leveling materials have the advantages of good fluidity and stability, simple construction, low labor intensity, smooth and smooth, high strength value, thin leveling layer thickness, good water and acid resistance, etc., and are ideal for large supermarkets, shopping malls, parking lots, factory workshops, The ideal material for floor paving such as warehouses is also a development direction of building floor construction, with great market potential.
目前国内生产的水泥自流平砂浆仍然存在早期强度低，表面粉化，耐磨性不足等问题，由于以薄层的形式施工，容易引起开裂，产品性能的稳定性不够理想。因此,目前几乎还不能将自流平砂浆作为地坪的面层,而只能在自流平找平层之上再使用环氧树脂自流平材料或者再贴PVC板、瓷砖或地毯等其他地面材料作装饰层，影响了其大面积推广应用。归纳起来，要配制性能优异的水泥基自流平砂浆需要解决好以下几个问题：流动性与稳定性之间的问题；早强与缓凝的问题；收缩与膨胀的问题。At present, the cement self-leveling mortar produced in China still has problems such as low early strength, surface pulverization, and insufficient wear resistance. Due to the construction in the form of a thin layer, it is easy to cause cracking, and the stability of product performance is not ideal. Therefore, at present, it is almost impossible to use self-leveling mortar as the surface layer of the floor, but to use epoxy resin self-leveling materials on top of the self-leveling leveling layer or to paste other floor materials such as PVC boards, tiles or carpets for decoration. layer, affecting its large-scale promotion and application. To sum up, to prepare cement-based self-leveling mortar with excellent performance, the following problems need to be solved: the problem between fluidity and stability; the problem of early strength and retardation; the problem of shrinkage and expansion.
一般来说，提高水泥细度对增长水泥的早期强度有很大好处，对28d强度也有一定影响，因为水泥粉磨的愈细，比表面积愈大，水泥与水接触的反应表面亦大。因而加速了水泥水化，凝结和硬化过程的进行，所以早期强度提高明显。但是比表面积增加到一定程度，则强度下降，这是因为水泥磨得越细，标准稠度需水量也愈高，使得水泥浆体凝结硬化后，有大量的游离水残留其中，随着水分的蒸发，产生较多的空隙，造成强度下降，抗腐蚀能力降低。通过控制比表面积来控制水泥的细度，以此来增加水泥基自流平砂浆的早期强度；另外，使用磨细的普通硅酸盐水泥作为自流平砂浆的胶凝材料，从而代替硅酸盐水泥与其他特殊水泥的复配，既可以解决早期强度与后期收缩的问题，又可以减少成本。Generally speaking, increasing the cement fineness is of great benefit to increasing the early strength of cement, and also has a certain impact on the 28d strength, because the finer the cement grinding, the larger the specific surface area, and the larger the reaction surface between cement and water. Therefore, the cement hydration, coagulation and hardening process are accelerated, so the early strength is significantly improved. However, when the specific surface area increases to a certain extent, the strength will decrease. This is because the finer the cement is ground, the higher the water requirement of the standard consistency will be. After the cement paste is solidified and hardened, a large amount of free water will remain in it. , resulting in more voids, resulting in reduced strength and reduced corrosion resistance. Control the fineness of cement by controlling the specific surface area, so as to increase the early strength of cement-based self-leveling mortar; in addition, use finely ground ordinary Portland cement as the cementitious material of self-leveling mortar to replace Portland cement Compounding with other special cements can not only solve the problems of early strength and later shrinkage, but also reduce costs.
发明内容Contents of the invention
本发明的目的为了改进现有技术的不足而提供一种水泥基自流平砂浆，本发明的另一目的是提供上述水泥基自流平砂浆的制备方法，制备工艺简单，性能稳定。The purpose of the present invention is to provide a cement-based self-leveling mortar in order to improve the deficiencies of the prior art. Another purpose of the present invention is to provide a preparation method of the above-mentioned cement-based self-leveling mortar, which has a simple preparation process and stable performance.
本发明的技术方案是：一种水泥基自流平砂浆，其特征在于其原料组分及各组分的质量份分别为：PO42.5水泥20～25份，磨细水泥8～10份，减水剂0.2～0.4份，保水剂0.009～0.01份，早强剂0.16～0.2份，可再分散乳胶粉0.3～0.6份，消泡剂0.1～0.3份，填料14～16份，膨胀剂2.5～3.2份，骨料48～50份。The technical solution of the present invention is: a cement-based self-leveling mortar, which is characterized in that its raw material components and the mass parts of each component are: 20-25 parts of PO42.5 cement, 8-10 parts of ground cement, and 0.2-0.4 parts of water agent, 0.009-0.01 parts of water-retaining agent, 0.16-0.2 parts of early strength agent, 0.3-0.6 parts of redispersible latex powder, 0.1-0.3 parts of defoamer, 14-16 parts of filler, 2.5-0 parts of expansion agent 3.2 parts, 48-50 parts of aggregate.
优选上述的磨细水泥是表面积为500～600m2/kg的PO42.5水泥。优选上述的减水剂为聚羧酸减水剂或三聚氰胺减水剂。优选所述的保水剂为羟丙基甲基纤维素醚(HPMC)、甲基纤维素醚(MC)或羟乙基甲基纤维素醚(HEMC)中的一种；保水剂粘度在60000～100000mpa·s之间。优选所述的可再分散乳胶粉可再分散乳胶粉为“瓦克”醋酸乙烯酯-乙烯共聚乳胶粉或“易来泰”醋酸乙烯-叔碳乙烯酯-乙烯共聚乳胶粉中的一种。优选所述的早强剂为甲酸钙或碳酸锂；所述的消泡剂为德国P803消泡剂或P823消泡剂；所述的膨胀剂为U型高效膨胀剂，代号为UEA-H。优选所述的填料为重钙粉和矿渣粉，重钙粉和矿渣粉的质量比为0.5～6:1。重钙为市售双飞粉，细度在400-500目，碳酸钙大于85％，白度大于94；矿渣粉为市售高炉矿渣粉，细度在400-500目，密度≥2.8g/cm3,比表面积≥400m2/kg。优选所述的骨料为粗石英砂和细石英砂；粗石英砂的目数为30～70目，细石英砂的目数为70～120目；粗石英砂和细石英砂的重量比为1～1.6:1。Preferably, the above-mentioned finely ground cement is PO42.5 cement with a surface area of 500-600 m2 /kg. Preferably, the above-mentioned water reducer is a polycarboxylate water reducer or a melamine water reducer. Preferably, the water-retaining agent is one of hydroxypropyl methyl cellulose ether (HPMC), methyl cellulose ether (MC) or hydroxyethyl methyl cellulose ether (HEMC); the viscosity of the water-retaining agent is between 60,000 and Between 100000mpa·s. Preferably described redispersible latex powder redispersible latex powder is " Wacker " Vinyl acetate-ethylene copolymer latex powder or "Yi Lai Tai" One of vinyl acetate-tertiary carbon vinyl ester-ethylene copolymer latex powder. Preferably, the early strength agent is calcium formate or lithium carbonate; the defoamer is German P803 defoamer or P823 defoamer; the expansion agent is a U-type high-efficiency expansion agent, code-named UEA-H. Preferably, the filler is heavy calcium powder and slag powder, and the mass ratio of heavy calcium powder and slag powder is 0.5-6:1. Heavy calcium is commercially available Shuangfei powder with a fineness of 400-500 mesh, calcium carbonate greater than 85%, and whiteness greater than 94; slag powder is commercially available blast furnace slag powder with a fineness of 400-500 mesh and a density of ≥2.8g/cm3. Specific surface area ≥ 400m2 /kg. Preferably, the aggregate is coarse quartz sand and fine quartz sand; the mesh number of coarse quartz sand is 30-70 mesh, and the mesh number of fine quartz sand is 70-120 mesh; the weight ratio of coarse quartz sand and fine quartz sand is 1～1.6:1.
本发明还提供了上述的水泥基自流平砂浆的制备方法，先将PO42.5水泥、填料、膨胀剂按重量份配比称量，然后投入磨机中，磨细至比表面积为500～600m2/kg，最后将磨细水泥、减水剂、保水剂、早强剂、可再分散乳胶粉、消泡剂、骨料按重量份配比称量，投入混料机中，混合搅拌10～20分钟，装袋包装好得到水泥基自流平砂浆。The present invention also provides a preparation method of the above-mentioned cement-based self-leveling mortar. First, PO42.5 cement, fillers, and expansion agents are weighed according to the weight ratio, and then put into a mill to grind until the specific surface area is 500-600m2 /kg, and finally weigh the ground cement, water reducer, water retaining agent, early strength agent, redispersible latex powder, defoamer, and aggregate according to the weight ratio, put them into the mixer, and mix and stir for 10 ~20 minutes, bagged and packaged to obtain cement-based self-leveling mortar.
有益效果:Beneficial effect:
本发明所述的水泥基自流平砂浆制备与应用方法简单、施工和易性好，具有耐水性能好、低收缩、机械力学性能高、自流平性能的优点；另外，本发明能够有效解决现有双组分水泥基自流平砂浆现场施工工艺复杂、砂浆性能不稳定、污染环境等问题，由于不含有毒、有害物质，因此是一种绿色环保的建筑材料。The cement-based self-leveling mortar of the present invention has simple preparation and application methods, good construction workability, and has the advantages of good water resistance, low shrinkage, high mechanical properties, and self-leveling performance; in addition, the present invention can effectively solve existing problems. Two-component cement-based self-leveling mortar has problems such as complex on-site construction technology, unstable mortar performance, and environmental pollution. Because it does not contain toxic and harmful substances, it is a green and environmentally friendly building material.
具体实施方式Detailed ways
下面通过实施例进一步说明本发明。The present invention is further illustrated below by way of examples.
实施例1Example 1
按重量百分比计，称取PO42.5水泥24份，比表面积为360m2/kg，重钙粉10份，细度为400目，矿渣粉5份，细度为400目，UEA-H膨胀剂2.5份，投入磨机中，磨细至比表面积为600m2/kg；然后称取磨细水泥8份，比表面积为600m2/kg，石英砂30份，细度为50目，石英砂20份，细度为100目，聚羧酸减水剂0.2份，保水剂HPMC0.01份，粘度为60000mpa.s，可再分散乳胶粉“易来泰”醋酸乙烯-叔碳乙烯酯-乙烯共聚乳胶粉0.6份，甲酸钙0.16份，德国P823消泡剂0.1份与粉料一起投入混料机中，混合15分钟；得到水泥基自流平砂浆粉料。In terms of weight percentage, weigh 24 parts of PO42.5 cement with a specific surface area of360m2 /kg, 10 parts of heavy calcium powder with a fineness of 400 mesh, 5 parts of slag powder with a fineness of 400 mesh, and UEA-H expansion agent 2.5 parts, put into the mill, and grind until the specific surface area is 600m2 /kg; then weigh 8 parts of ground cement, the specific surface area is 600m2 /kg, 30 parts of quartz sand, the fineness is 50 mesh, and 20 parts of quartz sand Parts, fineness is 100 mesh, polycarboxylate superplasticizer 0.2 parts, water retaining agent HPMC 0.01 part, viscosity is 60000mpa.s, redispersible latex powder "Yi Lai Tai" Put 0.6 part of vinyl acetate-tertiary carbon vinyl ester-ethylene copolymer latex powder, 0.16 part of calcium formate, and 0.1 part of German P823 defoamer into the mixer together with the powder, and mix for 15 minutes to obtain cement-based self-leveling mortar powder.
实施例2Example 2
按重量百分比计，称取PO42.5水泥22份，比表面积为360m2/kg，重钙粉9份，细度为450目，矿渣粉7份，细度为400目，UEA-H膨胀剂3.0份，投入磨机中，磨细至比表面积为550m2/kg；然后称取磨细水泥9份，比表面积为550m2/kg，石英砂25份，细度为30目，石英砂23份，细度为120目，三聚氰胺酸减水剂0.4份，保水剂HPMC0.01份，粘度为80000mpa.s，可再分散乳胶粉“易来泰”醋酸乙烯-叔碳乙烯酯-乙烯共聚乳胶粉0.6份，甲酸钙0.2份，德国P803消泡剂0.3份与粉料一起投入混料机中，混合10分钟。得到水泥基自流平砂浆粉料。In terms of weight percentage, weigh 22 parts of PO42.5 cement with a specific surface area of 360m2 /kg, 9 parts of heavy calcium powder with a fineness of 450 mesh, 7 parts of slag powder with a fineness of 400 mesh, and UEA-H expansion agent 3.0 parts, put into the mill, and grind until the specific surface area is 550m2 /kg; then weigh 9 parts of ground cement, the specific surface area is 550m2 /kg, 25 parts of quartz sand, the fineness is 30 mesh, 23 parts of quartz sand Parts, fineness 120 mesh, melamine acid superplasticizer 0.4 part, water retaining agent HPMC 0.01 part, viscosity 80000mpa.s, redispersible latex powder "Yi Lai Tai" Put 0.6 part of vinyl acetate-tertiary carbon vinyl ester-ethylene copolymer latex powder, 0.2 part of calcium formate, and 0.3 part of German P803 defoamer into the mixer together with the powder, and mix for 10 minutes. A cement-based self-leveling mortar powder is obtained.
实施例3Example 3
按重量百分比计，称取PO42.5水泥25份，比表面积为360m2/kg，重钙粉10份，细度为400目，矿渣粉6份，细度为500目，UEA-H膨胀剂3.2份，投入磨机中，磨细至比表面积为520m2/kg；然后称取磨细水泥8份，比表面积为520m2/kg，石英砂30份，细度为40目，石英砂19份，细度为100目，聚羧酸减水剂0.4份，保水剂HEMC0.009份，粘度为70000mpa.s，可再分散乳胶粉“瓦克”醋酸乙烯酯-乙烯共聚乳胶粉0.4份，甲酸钙0.2份，德国P823消泡剂0.2份与粉料一起投入混料机中，混合15分钟，得到水泥基自流平砂浆粉料。In terms of weight percentage, weigh 25 parts of PO42.5 cement with a specific surface area of360m2 /kg, 10 parts of heavy calcium powder with a fineness of 400 mesh, 6 parts of slag powder with a fineness of 500 mesh, and UEA-H expansion agent 3.2 parts, put into the mill, and grind until the specific surface area is 520m2 /kg; then weigh 8 parts of ground cement, the specific surface area is 520m2 /kg, 30 parts of quartz sand, the fineness is 40 mesh, 19 parts of quartz sand parts, fineness is 100 mesh, polycarboxylate superplasticizer 0.4 parts, water retaining agent HEMC 0.009 parts, viscosity is 70000mpa.s, redispersible latex powder "Wake" Put 0.4 part of vinyl acetate-ethylene copolymer latex powder, 0.2 part of calcium formate, and 0.2 part of German P823 defoamer into the mixer together with the powder, and mix for 15 minutes to obtain cement-based self-leveling mortar powder.
实施例4Example 4
按重量百分比计，称取PO42.5水泥20份，比表面积为360m2/kg，重钙粉5份，细度为500目，矿渣粉10份，细度为400目，UEA-H膨胀剂3.2份，投入磨机中，磨细至比表面积为570m2/kg；然后称取磨细水泥10份，比表面积为570m2/kg，石英砂25份，细度为70目，石英砂25份，细度为90目，聚羧酸减水剂0.3份，保水剂MC0.01份，粘度为60000mpa.s，可再分散乳胶粉“易来泰”醋酸乙烯-叔碳乙烯酯-乙烯共聚乳胶粉0.3份，碳酸锂早强剂0.2份，德国P823消泡剂0.3份与粉料一起投入混料机中，混合20分钟；得到水泥基自流平砂浆粉料。In terms of weight percentage, weigh 20 parts of PO42.5 cement with a specific surface area of360m2 /kg, 5 parts of heavy calcium powder with a fineness of 500 mesh, 10 parts of slag powder with a fineness of 400 mesh, and UEA-H expansion agent 3.2 parts, put into the mill, and grind until the specific surface area is 570m2 /kg; then weigh 10 parts of ground cement, the specific surface area is 570m2 /kg, 25 parts of quartz sand, the fineness is 70 mesh, 25 parts of quartz sand Parts, fineness 90 mesh, 0.3 parts of polycarboxylate superplasticizer, 0.01 parts of water retaining agent MC, viscosity of 60000mpa.s, redispersible latex powder "Yi Lai Tai" Put 0.3 part of vinyl acetate-tertiary carbon vinyl ester-ethylene copolymer latex powder, 0.2 part of lithium carbonate early strength agent, 0.3 part of German P823 defoamer into the mixer with the powder, and mix for 20 minutes; get cement-based self-leveling mortar Powder.
实施例5Example 5
按重量百分比计，称取PO42.5水泥25份，比表面积为360m2/kg，重钙粉12份，细度为400目，矿渣粉2份，细度为400目，UEA-H膨胀剂2.5份，投入磨机中，磨细至比表面积为500m2/kg；然后称取磨细水泥8份，比表面积为500m2/kg，石英砂30份，细度为40目，石英砂20份，细度为70目，三聚氰胺减水剂0.2份，保水剂HPMC0.009份，粘度为100000mpa.s，可再分散乳胶粉“瓦克”醋酸乙烯酯-乙烯共聚乳胶粉0.6份，碳酸锂早强剂0.16份，德国P803消泡剂0.1份与粉料一起投入混料机中，混合15分钟；得到水泥基自流平砂浆粉料。In terms of weight percentage, weigh 25 parts of PO42.5 cement with a specific surface area of360m2 /kg, 12 parts of heavy calcium powder with a fineness of 400 mesh, 2 parts of slag powder with a fineness of 400 mesh, and UEA-H expansion agent 2.5 parts, put into the mill, and grind until the specific surface area is 500m2 /kg; then weigh 8 parts of ground cement, the specific surface area is 500m2 /kg, 30 parts of quartz sand, the fineness is 40 mesh, 20 parts of quartz sand Parts, fineness is 70 mesh, melamine superplasticizer 0.2 parts, water retaining agent HPMC 0.009 parts, viscosity is 100000mpa.s, redispersible latex powder "Wake" Put 0.6 part of vinyl acetate-ethylene copolymer latex powder, 0.16 part of lithium carbonate early strength agent, and 0.1 part of German P803 defoamer into a mixer with the powder, and mix for 15 minutes; obtain cement-based self-leveling mortar powder.
然后将实施例1-5得到水泥基自流平砂浆粉料加入18％水，用搅拌机先以60转/分，搅拌90s，静止80s，再以125转/分，搅拌70s，得到水泥基自流平砂浆。相关参数测试结果如表1所以。Then add 18% water to the cement-based self-leveling mortar powder obtained in Example 1-5, first stir with a mixer at 60 rpm for 90 seconds, stand still for 80 seconds, and then stir for 70 seconds at 125 rpm to obtain cement-based self-leveling mortar. The test results of relevant parameters are shown in Table 1.
表1Table 1
表1所测水泥基自流平砂浆的各项性能符合JC/T985-2005《地面用水泥基自流平砂浆》相关性能要求，加入磨细水泥后，可以有效提高水泥基自流平砂浆早期强度，膨胀剂UEA-H的掺入，能够有效改善了水泥基自流平砂浆的收缩性能，制备的水泥基自流平砂浆具有制备方式简单，成本低廉，强度高，流动度良好，收缩稳定，施工性能优异等特点。The properties of cement-based self-leveling mortar measured in Table 1 meet the relevant performance requirements of JC/T985-2005 "Cement-based self-leveling mortar for ground". After adding finely ground cement, the early strength of cement-based self-leveling mortar can be effectively improved. The addition of agent UEA-H can effectively improve the shrinkage performance of cement-based self-leveling mortar. The prepared cement-based self-leveling mortar has the advantages of simple preparation, low cost, high strength, good fluidity, stable shrinkage, and excellent construction performance. features.
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本领域的技术人员在本发明所揭露的技术范围内，可不经过创造性劳动想到的变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应该以权利要求书所限定的保护范围为准。The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, and any person skilled in the art may make changes or modifications without creative work within the technical scope disclosed in the present invention. Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope defined in the claims.
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|---|---|---|---|---|
| CN104961400A (en)* | 2015-06-29 | 2015-10-07 | 湖州华仑助剂科技有限公司 | Concrete |
| CN105236894A (en)* | 2015-10-29 | 2016-01-13 | 华南理工大学 | Anti-shrinkage self-leveling mortar with good self-healing property for bedding layer and preparation method thereof |
| CN105777034A (en)* | 2016-02-25 | 2016-07-20 | 张学健 | Abrasion-resistant cement-based self-leveling mortar |
| CN106116326A (en)* | 2016-06-17 | 2016-11-16 | 南京徽腾环保科技有限公司 | A kind of Self-leveling dry powder and mortar and preparation method, utilize terrace and construction method thereof prepared by this dry powder and mortar |
| CN106587809A (en)* | 2016-11-30 | 2017-04-26 | 浙江理工大学 | Preparing method for surface course self-leveling cement |
| CN106630843A (en)* | 2016-12-28 | 2017-05-10 | 嘉华特种水泥股份有限公司 | Cement-based self-leveling anti-cracking 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 |
| CN107324746A (en)* | 2017-07-19 | 2017-11-07 | 刘少伟 | A kind of new gravity flowing levelling mortar and its production technology |
| CN107417221A (en)* | 2017-09-21 | 2017-12-01 | 张聪聪 | Wear-resistant and crack-resistant cement-based self-leveling mortar and its production method |
| CN108329781A (en)* | 2018-02-13 | 2018-07-27 | 贵州皓科新型材料有限公司 | Water-proof decorative integrative paint and preparation method thereof |
| CN108996967A (en)* | 2018-08-24 | 2018-12-14 | 江西牧石建材有限公司 | Clear water floor paint and preparation method thereof |
| CN112125601A (en)* | 2020-11-11 | 2020-12-25 | 海南瑞宸新型建材有限公司 | Low-cost cement self-leveling mortar, preparation method and application method thereof |
| CN112266226A (en)* | 2020-10-29 | 2021-01-26 | 李金锁 | Non-ignition cement-based self-leveling mortar and preparation method thereof |
| CN113585521A (en)* | 2021-08-11 | 2021-11-02 | 河南城源住宅工业有限公司 | Prefabricated inorganic heat-insulating composite reinforced concrete outer wall |
| CN114195448A (en)* | 2021-12-07 | 2022-03-18 | 华南理工大学 | Self-leveling mortar and preparation method thereof |
| CN114907064A (en)* | 2021-02-07 | 2022-08-16 | 广东山众建筑科技有限公司 | Cement-based building material and preparation method thereof |
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| CN102145990A (en)* | 2011-03-28 | 2011-08-10 | 南京工业大学 | AC series cement-based self-leveling mortar for ground and preparation method thereof |
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| JPH0632638A (en)* | 1992-07-20 | 1994-02-08 | Kasei Kogyo Kk | Water-retaining agent for blending cement-based composition |
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| CN101519291A (en)* | 2008-02-27 | 2009-09-02 | 中国京冶工程技术有限公司 | Cement based self-leveling mortar with temperature regulation function |
| CN102145990A (en)* | 2011-03-28 | 2011-08-10 | 南京工业大学 | AC series cement-based self-leveling mortar for ground and preparation method thereof |
| CN104003682A (en)* | 2014-06-12 | 2014-08-27 | 交通运输部公路科学研究所 | Ultra-high performance concrete |
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| CN104961400A (en)* | 2015-06-29 | 2015-10-07 | 湖州华仑助剂科技有限公司 | Concrete |
| CN105236894A (en)* | 2015-10-29 | 2016-01-13 | 华南理工大学 | Anti-shrinkage self-leveling mortar with good self-healing property for bedding layer and preparation method thereof |
| 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 |
| CN105777034A (en)* | 2016-02-25 | 2016-07-20 | 张学健 | Abrasion-resistant cement-based self-leveling mortar |
| CN106116326B (en)* | 2016-06-17 | 2018-08-14 | 南京徽腾环保科技有限公司 | A kind of Self-leveling dry powder and mortar and preparation method, the terrace for utilizing the dry powder and mortar to prepare and its construction method |
| CN106116326A (en)* | 2016-06-17 | 2016-11-16 | 南京徽腾环保科技有限公司 | A kind of Self-leveling dry powder and mortar and preparation method, utilize terrace and construction method thereof prepared by this dry powder and mortar |
| CN106587809A (en)* | 2016-11-30 | 2017-04-26 | 浙江理工大学 | Preparing method for surface course self-leveling cement |
| CN106630843A (en)* | 2016-12-28 | 2017-05-10 | 嘉华特种水泥股份有限公司 | Cement-based self-leveling anti-cracking mortar |
| CN107324746A (en)* | 2017-07-19 | 2017-11-07 | 刘少伟 | A kind of new gravity flowing levelling mortar and its production technology |
| CN107417221A (en)* | 2017-09-21 | 2017-12-01 | 张聪聪 | Wear-resistant and crack-resistant cement-based self-leveling mortar and its production method |
| CN108329781A (en)* | 2018-02-13 | 2018-07-27 | 贵州皓科新型材料有限公司 | Water-proof decorative integrative paint and preparation method thereof |
| CN108996967A (en)* | 2018-08-24 | 2018-12-14 | 江西牧石建材有限公司 | Clear water floor paint and preparation method thereof |
| CN112266226A (en)* | 2020-10-29 | 2021-01-26 | 李金锁 | Non-ignition cement-based self-leveling mortar and preparation method thereof |
| CN112266226B (en)* | 2020-10-29 | 2022-06-17 | 李金锁 | A kind of non-flammable cement-based self-leveling mortar and preparation method thereof |
| CN112125601A (en)* | 2020-11-11 | 2020-12-25 | 海南瑞宸新型建材有限公司 | Low-cost cement self-leveling mortar, preparation method and application method thereof |
| CN114907064A (en)* | 2021-02-07 | 2022-08-16 | 广东山众建筑科技有限公司 | Cement-based building material and preparation method thereof |
| CN113585521A (en)* | 2021-08-11 | 2021-11-02 | 河南城源住宅工业有限公司 | Prefabricated inorganic heat-insulating composite reinforced concrete outer wall |
| CN114195448A (en)* | 2021-12-07 | 2022-03-18 | 华南理工大学 | Self-leveling mortar and preparation method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication | Application publication date:20150408 |