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A platform for research: civil engineering, architecture and urbanism
High-performance anti-cracking concrete and preparation method thereof
The invention discloses high-performance anti-cracking concrete, belonging to the technical field of concrete production. The high-performance anti-cracking concrete comprises the following components in parts by weight: 220 to 260 parts of cement, 1050 to 1250 parts of stones, 600 to 750 parts of river sand, 65 to 78 parts of an expanding agent, 4 to 9 parts of a water reducing agent, 50 to 65 parts of an admixture and 100 to 120 parts of water, wherein the expanding agent is a UEA expanding agent, and the water reducing agent is a polycarboxylic acid water reducing agent. By utilizing the expanding agent and the water reducing agent prepared by the invention, the surface and internal cracking of the concrete caused by non-structural reasons such as temperature difference, illumination aging, even hydration heat, dry shrinkage and the like can be effectively prevented by adjusting the effective ratio of the raw materials of the concrete.
本发明公开了一种高性能防开裂混凝土，属于混凝土生产技术领域。所述高性能防开裂混凝土包括以下重量份的组分：220‑260份水泥、1050～1250份石子、600～750份河砂、65～78份膨胀剂、4～9份减水剂、50～65份掺合料和100～120份水，其中，所述膨胀剂为UEA膨胀剂，所述减水剂为聚羧酸减水剂。利用本发明制备的膨胀剂和减水剂，结合通过调整混凝土各原料的有效配比，能够有效防止混凝土因温差、光照老化甚至水化热和干缩等非结构性原因造成的表面和内部开裂。
High-performance anti-cracking concrete and preparation method thereof
The invention discloses high-performance anti-cracking concrete, belonging to the technical field of concrete production. The high-performance anti-cracking concrete comprises the following components in parts by weight: 220 to 260 parts of cement, 1050 to 1250 parts of stones, 600 to 750 parts of river sand, 65 to 78 parts of an expanding agent, 4 to 9 parts of a water reducing agent, 50 to 65 parts of an admixture and 100 to 120 parts of water, wherein the expanding agent is a UEA expanding agent, and the water reducing agent is a polycarboxylic acid water reducing agent. By utilizing the expanding agent and the water reducing agent prepared by the invention, the surface and internal cracking of the concrete caused by non-structural reasons such as temperature difference, illumination aging, even hydration heat, dry shrinkage and the like can be effectively prevented by adjusting the effective ratio of the raw materials of the concrete.
本发明公开了一种高性能防开裂混凝土，属于混凝土生产技术领域。所述高性能防开裂混凝土包括以下重量份的组分：220‑260份水泥、1050～1250份石子、600～750份河砂、65～78份膨胀剂、4～9份减水剂、50～65份掺合料和100～120份水，其中，所述膨胀剂为UEA膨胀剂，所述减水剂为聚羧酸减水剂。利用本发明制备的膨胀剂和减水剂，结合通过调整混凝土各原料的有效配比，能够有效防止混凝土因温差、光照老化甚至水化热和干缩等非结构性原因造成的表面和内部开裂。
High-performance anti-cracking concrete and preparation method thereof
一种高性能防开裂混凝土及其制备方法
DIAO ZIXIANG (author) / LAI SHUIHUA (author)
2022-02-01
Patent
Electronic Resource
Chinese
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