CN1454866A - High performance concrete impervious water proofing agent for building - Google Patents
High performance concrete impervious water proofing agent for building Download PDFInfo
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- CN1454866A CN1454866A CN 03116917 CN03116917A CN1454866A CN 1454866 A CN1454866 A CN 1454866A CN 03116917 CN03116917 CN 03116917 CN 03116917 A CN03116917 A CN 03116917A CN 1454866 A CN1454866 A CN 1454866A
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- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 30
- 239000004574 high-performance concrete Substances 0.000 title claims abstract description 9
- 238000004078 waterproofing Methods 0.000 title claims abstract description 8
- 239000004567 concrete Substances 0.000 claims abstract description 33
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 7
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 4
- 239000010703 silicon Substances 0.000 claims abstract description 4
- 150000002790 naphthalenes Chemical class 0.000 claims abstract 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 9
- 229910021487 silica fume Inorganic materials 0.000 claims description 9
- 239000011734 sodium Substances 0.000 claims description 9
- 229910052708 sodium Inorganic materials 0.000 claims description 9
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 6
- 239000005871 repellent Substances 0.000 claims description 6
- -1 alkylbenzene sulfonate Chemical class 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 4
- NVVZQXQBYZPMLJ-UHFFFAOYSA-N formaldehyde;naphthalene-1-sulfonic acid Chemical group O=C.C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 NVVZQXQBYZPMLJ-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- 239000008030 superplasticizer Substances 0.000 claims description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 2
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 2
- 239000004571 lime Substances 0.000 claims description 2
- 239000000395 magnesium oxide Substances 0.000 claims description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 2
- 235000011152 sodium sulphate Nutrition 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 3
- 229910052918 calcium silicate Inorganic materials 0.000 abstract 1
- 235000012241 calcium silicate Nutrition 0.000 abstract 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 abstract 1
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 abstract 1
- 239000004568 cement Substances 0.000 description 10
- 239000011148 porous material Substances 0.000 description 7
- 230000000740 bleeding effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000006703 hydration reaction Methods 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 230000036571 hydration Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
技术领域technical field
本发明属建筑材料技术领域，具体涉及一种建筑用高性能混凝土抗渗防水剂。The invention belongs to the technical field of building materials, and in particular relates to a high-performance concrete anti-seepage and water-repellent agent for building.
背景技术Background technique
建筑物和各种构筑物的开裂和渗漏几乎成为当今混凝土结构的一大质量通病，素有“天阴偏逢连夜雨”的说法，表达了人们对屋漏烦恼的无奈。Cracking and leakage of buildings and various structures has almost become a major quality problem in today's concrete structures. There is a saying that "the sky is cloudy and it rains all night", which expresses people's helplessness about house leakage.
水泥混凝土通常由于用水量大，硬化干燥后在水泥石内部和集料-浆体界面形成了大量连通的毛细孔，再加上其干燥过程中体积收缩，受到约束后易产生开裂现象，更加加剧了其渗漏危害。Cement concrete usually has a large amount of water, and after hardening and drying, a large number of connected capillary pores are formed inside the cement stone and at the aggregate-slurry interface. In addition, the volume shrinks during the drying process, which is prone to cracking after being restrained, which is even more aggravated. its leakage hazard.
长期以来，人们采用各种措施解决混凝土的抗渗漏问题，如采用增加水泥用量、改善集料级配等，但收效有限，且成本增加较多，裂缝问题依然不能解决。过去几十年，人们也采用添加三乙醇胺、氯化铁等外加剂来提高混凝土抗渗性的措施，均不能解决混凝土的开裂问题，且三乙醇胺使用不当，易对混凝土性能造成严重危害，氯化铁则对内部钢筋有腐蚀作用，已被限制使用。For a long time, people have adopted various measures to solve the anti-leakage problem of concrete, such as increasing the amount of cement, improving aggregate gradation, etc., but the effect is limited, and the cost is increased, and the crack problem still cannot be solved. In the past few decades, people have also adopted measures to improve the impermeability of concrete by adding admixtures such as triethanolamine and ferric chloride, but none of them can solve the cracking problem of concrete, and improper use of triethanolamine can easily cause serious damage to concrete performance. Iron oxide has a corrosive effect on internal steel bars and has been restricted in use.
混凝土膨胀剂研制成功后，人们开始普遍采用膨胀剂单掺和膨胀剂与减水剂复合掺加的措施来改善混凝土的抗渗性和抗开裂性，但由于过分依赖于膨胀剂的膨胀性和填充性，应用失败的例子也较多。After the successful development of concrete expansive agent, people began to generally adopt the measures of single blending of expansive agent and composite addition of expansive agent and water reducer to improve the impermeability and crack resistance of concrete. Filling, there are many examples of application failure.
发明内容Contents of the invention
本发明的目的在于提出一种可以提高混凝土的密实性和抗开裂、抗化学侵蚀的建筑用混凝土抗渗防水剂。The object of the present invention is to propose a concrete anti-seepage and water-repellent agent for building that can improve the compactness, crack resistance and chemical erosion resistance of concrete.
本发明提出的建筑用混凝土抗渗防水剂，由萘系高效减水剂、膨胀剂、12烷基苯磺酸钠、有机硅和硅灰组成，各组份的重量比为：The anti-seepage and water-repellent agent for building concrete proposed by the present invention is composed of naphthalene-based high-efficiency water reducer, expansion agent, sodium 12 alkylbenzene sulfonate, organic silicon and silica fume, and the weight ratio of each component is:
萘系高效减水剂 100Naphthalene superplasticizer 100
膨胀剂 525-800Expander 525-800
12烷基苯磺酸钠 0.0008-0.0025Sodium 12-alkylbenzenesulfonate 0.0008-0.0025
有机硅 0.5-1.75Silicone 0.5-1.75
硅灰 125-313Silica fume 125-313
各组份较佳的重量比为：The preferred weight ratio of each component is:
萘系高效减水剂 100Naphthalene superplasticizer 100
膨胀剂 650-750Expansion agent 650-750
12烷基苯磺酸钠 0.001-0.002Sodium 12-alkylbenzenesulfonate 0.001-0.002
有机硅 0.8-1.5Silicone 0.8-1.5
硅灰 180-250。Silica fume 180-250.
本发明中，萘系高效减水剂为萘磺酸甲醛缩合物(硫酸钠含量小于3％)。In the present invention, the naphthalene-based high-efficiency water reducer is a naphthalenesulfonic acid formaldehyde condensate (sodium sulfate content is less than 3%).
本发明中，膨胀剂为硫铝酸钙类、硫酸钙类、石灰类、氧化镁类膨胀剂之一种。In the present invention, the expansion agent is one of calcium sulfoaluminate, calcium sulfate, lime and magnesium oxide expansion agents.
本发明的制备方法是：按前述各重量比例称量各组份，将五种原料通过物理机械混合，搅拌，即得到本产品。The preparation method of the present invention is as follows: weighing each component according to the aforementioned weight ratios, mixing and stirring five kinds of raw materials by physical machinery to obtain the product.
本发明中，萘系高效减水剂的作用是塑化减水，能使混凝土达所要求的流动性情况下，水灰比降低，从而减小孔隙率、细化孔径、减小硬化体收缩；膨胀剂的作用是参与水泥的水化过程，产生一定量的膨胀性水化产物，在混凝土强度增长的过程中，使混凝土产生一定的体积膨胀(0.3％-0.4％)，补偿混凝土由于干燥失水所导致的收缩，增加混凝土的体积稳定性，防止收缩裂缝，提高混凝土的抗裂防水性；12烷基苯磺酸钠的作用是使混凝土在搅拌过程中引入非常微小(20-500μm)的独立存在的封闭孔，一方面阻隔连通的毛细孔，另一方面改善新拌混凝土的和易性，降低泌水率，提高抗渗性；有机硅的作用是吸附于由12烷基苯磺酸钠所引入的孔隙内壁，增加孔隙内壁的憎水性，提高混凝土的抗渗性；硅灰的作用是填充于水泥颗粒堆积后的孔隙内，参与水泥水化反应，产生二次火山灰效应，形成水化产物，填充毛细管，阻塞毛细管渗水通道，大幅度改善混凝土的抗渗性和抗化学侵蚀性。In the present invention, the function of the naphthalene-based high-efficiency water-reducing agent is to plasticize and reduce water. When the concrete reaches the required fluidity, the water-cement ratio is reduced, thereby reducing the porosity, refining the pore size, and reducing the shrinkage of the hardened body. The role of the expansion agent is to participate in the hydration process of the cement and produce a certain amount of expansive hydration products. In the process of increasing the strength of the concrete, the concrete will produce a certain volume expansion (0.3%-0.4%) to compensate for the dryness of the concrete. The shrinkage caused by dehydration increases the volume stability of concrete, prevents shrinkage cracks, and improves the crack resistance and water resistance of concrete; the function of sodium 12 alkylbenzene sulfonate is to introduce very small (20-500μm) into concrete during mixing. The independently existing closed pores, on the one hand, block the connected capillary pores, on the other hand, improve the workability of fresh concrete, reduce the bleeding rate, and improve the impermeability; The inner wall of the pore introduced by sodium phosphate increases the hydrophobicity of the inner wall of the pore and improves the impermeability of the concrete; the role of silica fume is to fill in the pores after the accumulation of cement particles, participate in the cement hydration reaction, and produce a secondary pozzolanic effect, forming Hydration products fill capillaries, block capillary seepage channels, and greatly improve the impermeability and chemical erosion resistance of concrete.
本发明生产工艺简单，使用方便，使用效果非常突出。试验表明，在混凝土中掺加占胶凝材料总量5.0％-10.0％的该产品，可配制出坍落度为22±2cm，抗渗等级达P20以上的高性能抗渗防水混凝土。与基准混凝土相比，掺加该外加剂的混凝土其减水率可达16％以上，泌水率比为60％以下，渗透高度比为30％以下，吸水量比为50％以下，28天抗压强度比达130％以上，完全符合《JC474-1999砂浆、混凝土防水剂》一等品标准。The invention has the advantages of simple production process, convenient use and outstanding use effect. Tests have shown that by adding 5.0%-10.0% of the product to the concrete, a high-performance impermeable and waterproof concrete with a slump of 22±2cm and an impermeability level of P20 or above can be prepared. Compared with the reference concrete, the water reduction rate of the concrete mixed with this admixture can reach more than 16%, the bleeding rate ratio is less than 60%, the penetration height ratio is less than 30%, and the water absorption ratio is less than 50%. The compressive strength ratio is more than 130%, fully complying with the first-class standard of "JC474-1999 Mortar and Concrete Waterproofing Agent".
具体实施方式Detailed ways
实施例1、建筑用高性能混凝土抗渗防水剂按萘磺酸甲醛缩合物8％(重量百分比，下同)、硫酸钙类膨胀剂76.9399％、12烷基苯磺酸钠0.0001％、有机硅0.06％、硅灰15％配制而成，掺加占水泥重量8％的该种外加剂，可以使减水率达16％，泌水率比达45％，混凝土3天、7天和28天抗压强度比分别为164％、147％和135％，混凝土渗透高度比为40％以下。Embodiment 1, high-performance concrete anti-seepage water-repellent agent for building is by naphthalenesulfonic acid formaldehyde condensate 8% (percentage by weight, the same below), calcium sulfate expansion agent 76.9399%, sodium 12 alkylbenzenesulfonate 0.0001%, organosilicon 0.06% and 15% silica fume, mixed with this admixture accounting for 8% of the cement weight, can make the water reduction rate reach 16%, the bleeding rate ratio reaches 45%, and the concrete can be used for 3 days, 7 days and 28 days The compressive strength ratios are 164%, 147% and 135% respectively, and the concrete penetration height ratio is below 40%.
实施例2、建筑用高性能混凝土抗渗防水剂按萘磺酸甲醛缩合物12％、硫铝酸钙类膨胀剂63％、12烷基苯磺酸钠0.0001％、有机硅0.06％、硅灰24.9399％配制而成，掺加占水泥重量8％的该种外加剂，可以使减水率达25％，泌水率比达25％，混凝土3天、7天和28天抗压强度比分别为210％、187％和145％，混凝土渗透高度比为30％以下。Embodiment 2, high-performance concrete anti-seepage and waterproofing agent for construction is composed of 12% of naphthalenesulfonic acid formaldehyde condensate, 63% of calcium sulfoaluminate expansion agent, 0.0001% of sodium 12 alkylbenzenesulfonate, 0.06% of organic silicon, and silica fume It is formulated with 24.9399% of the weight of the cement. Adding this admixture accounting for 8% of the cement weight can make the water reducing rate reach 25%, the bleeding rate ratio reach 25%, and the compressive strength ratio of concrete in 3 days, 7 days and 28 days respectively 210%, 187% and 145%, and the concrete penetration height ratio is below 30%.
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| CN 03116917 CN1454866A (en) | 2003-05-15 | 2003-05-15 | High performance concrete impervious water proofing agent for building |
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| CN 03116917 CN1454866A (en) | 2003-05-15 | 2003-05-15 | High performance concrete impervious water proofing agent for building |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475334B (en) * | 2008-09-08 | 2011-04-27 | 云南建工集团有限公司 | Composite concrete antiseptic agent |
| CN102432222A (en) * | 2011-09-26 | 2012-05-02 | 江苏博特新材料有限公司 | Capillary crystalline waterproofing agent |
| CN101781100B (en) * | 2009-01-20 | 2012-05-23 | 同济大学 | Concrete erosion-resistant agent and preparation method and application thereof |
| CN102503346A (en) * | 2011-11-08 | 2012-06-20 | 姜哲 | Cement-based penetrable crystallized waterproof paint, preparation method and construction method thereof |
| CN104446117A (en) * | 2014-11-18 | 2015-03-25 | 桂林华越环保科技有限公司 | Concrete expansion agent |
| CN104529235A (en) * | 2014-12-18 | 2015-04-22 | 河北科莱冷暖工程有限公司 | Organosilicone antirust and antifreeze waterproofing agent |
| CN105347728A (en) * | 2015-12-03 | 2016-02-24 | 中国航空综合技术研究所 | Concrete waterproof agent |
| CN105481289A (en) * | 2015-12-10 | 2016-04-13 | 文登蓝岛建筑工程有限公司 | Multifunctional high-performance concrete organosilicon waterproofing agent |
| CN105731873A (en) * | 2016-03-09 | 2016-07-06 | 文登蓝岛建筑工程有限公司 | Multifunctional anti-cracking water-proofing agent available for pumping concrete |
| CN105800994A (en) * | 2016-03-09 | 2016-07-27 | 文登蓝岛建筑工程有限公司 | Compound silicon concrete waterproof agent |
| CN107640932A (en) * | 2017-09-14 | 2018-01-30 | 成都博美实润科技有限公司 | A kind of concrete water-proof impervious agent and preparation method thereof |
| CN110550913A (en) * | 2019-10-14 | 2019-12-10 | 上海浦盈混凝土有限公司 | Impervious concrete and preparation process thereof |
| CN112830728A (en) * | 2021-01-13 | 2021-05-25 | 广东龙湖科技股份有限公司 | Self-curing infiltrating crystalline material for secondary grouting of shield, preparation method and application |
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- 2003-05-15 CN CN 03116917 patent/CN1454866A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475334B (en) * | 2008-09-08 | 2011-04-27 | 云南建工集团有限公司 | Composite concrete antiseptic agent |
| CN101781100B (en) * | 2009-01-20 | 2012-05-23 | 同济大学 | Concrete erosion-resistant agent and preparation method and application thereof |
| CN102432222A (en) * | 2011-09-26 | 2012-05-02 | 江苏博特新材料有限公司 | Capillary crystalline waterproofing agent |
| CN102432222B (en) * | 2011-09-26 | 2013-03-13 | 江苏博特新材料有限公司 | Permeable crystallization waterproof agent |
| CN102503346A (en) * | 2011-11-08 | 2012-06-20 | 姜哲 | Cement-based penetrable crystallized waterproof paint, preparation method and construction method thereof |
| CN104446117B (en) * | 2014-11-18 | 2016-08-17 | 桂林华越环保科技有限公司 | Cement expansive material |
| CN104446117A (en) * | 2014-11-18 | 2015-03-25 | 桂林华越环保科技有限公司 | Concrete expansion agent |
| CN104529235A (en) * | 2014-12-18 | 2015-04-22 | 河北科莱冷暖工程有限公司 | Organosilicone antirust and antifreeze waterproofing agent |
| CN105347728A (en) * | 2015-12-03 | 2016-02-24 | 中国航空综合技术研究所 | Concrete waterproof agent |
| CN105481289A (en) * | 2015-12-10 | 2016-04-13 | 文登蓝岛建筑工程有限公司 | Multifunctional high-performance concrete organosilicon waterproofing agent |
| CN105800994A (en) * | 2016-03-09 | 2016-07-27 | 文登蓝岛建筑工程有限公司 | Compound silicon concrete waterproof agent |
| CN105731873A (en) * | 2016-03-09 | 2016-07-06 | 文登蓝岛建筑工程有限公司 | Multifunctional anti-cracking water-proofing agent available for pumping concrete |
| CN107640932A (en) * | 2017-09-14 | 2018-01-30 | 成都博美实润科技有限公司 | A kind of concrete water-proof impervious agent and preparation method thereof |
| CN110550913A (en) * | 2019-10-14 | 2019-12-10 | 上海浦盈混凝土有限公司 | Impervious concrete and preparation process thereof |
| CN110550913B (en) * | 2019-10-14 | 2021-08-10 | 上海浦盈混凝土有限公司 | Impervious concrete and preparation process thereof |
| CN112830728A (en) * | 2021-01-13 | 2021-05-25 | 广东龙湖科技股份有限公司 | Self-curing infiltrating crystalline material for secondary grouting of shield, preparation method and application |
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