A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Glue-reducing type polycarboxylic acid water reducer and preparation method thereof
The invention relates to a glue reducing type polycarboxylic acid water reducing agent and a preparation method thereof, and the glue-reducing type polycarboxylic acid water reducing agent comprises the following components in parts by weight: 340-380 parts of an isopentenol polyoxyethylene ether macromonomer, 46-52 parts of acrylic acid, 3-9 parts of a polyoxyethylene-polyoxypropylene block copolymer functional monomer, 2-5 parts of mercaptoacetic acid, 2-6 parts of hydrogen peroxide, 0.5-0.9 part of ascorbic acid, and 900 to 1500 parts of deionized water. The raw materials are mixed according to certain conditions and steps to prepare the water reducing agent with glue reducing performance, the water reducing agent is used as a concrete admixture, on the basis of ensuring various properties of cement concrete, the cement consumption in the concrete can be greatly reduced, and by taking C50 concrete as an example, the cement consumption per cubic meter can be reduced by about 80kg compared with that of a conventional admixture.
本发明涉及一种减胶型聚羧酸减水剂及其制备方法，减胶型聚羧酸减水剂按重量份计包括以下组分：异戊烯醇聚氧化乙烯醚大单体340‑380份，丙烯酸46‑52份，聚氧乙烯‑聚氧丙烯嵌段共聚物功能单体3‑9份，巯基乙酸2‑5份，双氧水2‑6份，抗坏血酸0.5‑0.9份，去离子水900‑1500份。将上述组分的原料按一定条件和步骤进行混合，制成具有减胶性能的减水剂，作为混凝土外加剂，能在保证水泥混凝土各种性能的基础上，较大幅度地减少混凝土中水泥用量，以C50混凝土为例，单方水泥用量可比采用常规外加剂减少80kg左右。
Glue-reducing type polycarboxylic acid water reducer and preparation method thereof
The invention relates to a glue reducing type polycarboxylic acid water reducing agent and a preparation method thereof, and the glue-reducing type polycarboxylic acid water reducing agent comprises the following components in parts by weight: 340-380 parts of an isopentenol polyoxyethylene ether macromonomer, 46-52 parts of acrylic acid, 3-9 parts of a polyoxyethylene-polyoxypropylene block copolymer functional monomer, 2-5 parts of mercaptoacetic acid, 2-6 parts of hydrogen peroxide, 0.5-0.9 part of ascorbic acid, and 900 to 1500 parts of deionized water. The raw materials are mixed according to certain conditions and steps to prepare the water reducing agent with glue reducing performance, the water reducing agent is used as a concrete admixture, on the basis of ensuring various properties of cement concrete, the cement consumption in the concrete can be greatly reduced, and by taking C50 concrete as an example, the cement consumption per cubic meter can be reduced by about 80kg compared with that of a conventional admixture.
本发明涉及一种减胶型聚羧酸减水剂及其制备方法，减胶型聚羧酸减水剂按重量份计包括以下组分：异戊烯醇聚氧化乙烯醚大单体340‑380份，丙烯酸46‑52份，聚氧乙烯‑聚氧丙烯嵌段共聚物功能单体3‑9份，巯基乙酸2‑5份，双氧水2‑6份，抗坏血酸0.5‑0.9份，去离子水900‑1500份。将上述组分的原料按一定条件和步骤进行混合，制成具有减胶性能的减水剂，作为混凝土外加剂，能在保证水泥混凝土各种性能的基础上，较大幅度地减少混凝土中水泥用量，以C50混凝土为例，单方水泥用量可比采用常规外加剂减少80kg左右。
Glue-reducing type polycarboxylic acid water reducer and preparation method thereof
一种减胶型聚羧酸减水剂及其制备方法
QIAO KUANGYI (author) / ZHOU HUANYU (author) / LI XUEMING (author) / WANG MINGFEI (author) / LI CHONGXUE (author) / SU GAOWEI (author)
2021-11-19
Patent
Electronic Resource
Chinese
Polycarboxylic acid type water reducer and preparation method thereof
| European Patent Office | 2015
| European Patent Office | 2022
Viscosity-reducing water-retention polycarboxylic acid water reducer and preparation method thereof
| European Patent Office | 2022
Mud-resistant viscosity-reducing polycarboxylic acid water reducer and preparation method thereof
| European Patent Office | 2024
Water retention type polycarboxylic acid water reducer and preparation method thereof
| European Patent Office | 2024