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A platform for research: civil engineering, architecture and urbanism
Super-long slump-retaining polycarboxylic acid pumping agent and preparation method thereof
The invention discloses a super-long slump-retaining polycarboxylic acid pumping agent, which is prepared from the following components in parts by weight: 15 to 20 parts of water-reducing polycarboxylic acid superplasticizer, 10 to 15 parts of slump-retaining polycarboxylic acid superplasticizer, 1 to 3 parts of reaction type hydration regulator, 0.01 to 0.2 part of air entraining agent, 0 to 2 parts of retarder, 0.5 to 2.5 parts of auxiliary retention agent, 0.3 to 0.8 part of water-retaining agent and the balance of water. Compared with the prior art, a water-reducing polycarboxylic acid superplasticizer and a gradient slow-release slump-retaining polycarboxylic acid superplasticizer which have water-reducing and retaining properties are adopted as mother liquor, so that gradient slow release in a cement system is possible, super-long slump retaining of concrete can be realized, and possibility is provided for long pumping in a relatively far construction site or a relatively long pumping pipeline.
本发明公开了一种超长保坍型聚羧酸系泵送剂，按照总重量份数为100份计算，包括以下各组分：减水型聚羧酸超塑化剂15‑20份，保坍型聚羧酸超塑化剂10‑15份，反应型水化调节剂1‑3份，引气剂0.01‑0.2份，缓凝剂0‑2份，辅助保持剂0.5‑2.5份，保水剂0.3‑0.8份，余量为水；本发明与现有技术相比，采用兼备减水和保持性能的减水型聚羧酸超塑化剂和梯度缓慢释放型保坍型聚羧酸超塑化剂为母液，为水泥体系中梯度缓慢释放提供可能，能实现混凝土超长保坍，为工地较远或泵送管道较长泵送提供可能。
Super-long slump-retaining polycarboxylic acid pumping agent and preparation method thereof
The invention discloses a super-long slump-retaining polycarboxylic acid pumping agent, which is prepared from the following components in parts by weight: 15 to 20 parts of water-reducing polycarboxylic acid superplasticizer, 10 to 15 parts of slump-retaining polycarboxylic acid superplasticizer, 1 to 3 parts of reaction type hydration regulator, 0.01 to 0.2 part of air entraining agent, 0 to 2 parts of retarder, 0.5 to 2.5 parts of auxiliary retention agent, 0.3 to 0.8 part of water-retaining agent and the balance of water. Compared with the prior art, a water-reducing polycarboxylic acid superplasticizer and a gradient slow-release slump-retaining polycarboxylic acid superplasticizer which have water-reducing and retaining properties are adopted as mother liquor, so that gradient slow release in a cement system is possible, super-long slump retaining of concrete can be realized, and possibility is provided for long pumping in a relatively far construction site or a relatively long pumping pipeline.
本发明公开了一种超长保坍型聚羧酸系泵送剂，按照总重量份数为100份计算，包括以下各组分：减水型聚羧酸超塑化剂15‑20份，保坍型聚羧酸超塑化剂10‑15份，反应型水化调节剂1‑3份，引气剂0.01‑0.2份，缓凝剂0‑2份，辅助保持剂0.5‑2.5份，保水剂0.3‑0.8份，余量为水；本发明与现有技术相比，采用兼备减水和保持性能的减水型聚羧酸超塑化剂和梯度缓慢释放型保坍型聚羧酸超塑化剂为母液，为水泥体系中梯度缓慢释放提供可能，能实现混凝土超长保坍，为工地较远或泵送管道较长泵送提供可能。
Super-long slump-retaining polycarboxylic acid pumping agent and preparation method thereof
一种超长保坍型聚羧酸系泵送剂及其制备方法
PANG JIANJUN (author) / WANG JINGYAO (author) / LI WENKE (author) / XU MEIQING (author) / MIN SHUMENG (author) / ZHONG GUOCAI (author)
2021-07-20
Patent
Electronic Resource
Chinese
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