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A platform for research: civil engineering, architecture and urbanism
High-performance concrete with high seawater corrosion resistance and preparation method thereof
The invention discloses high-performance concrete with high seawater corrosion resistance and a preparation method of the high-performance concrete. The high-performance concrete is prepared from the following raw materials in parts by weight: 310 to 450 kg of aluminoferrite cement, 160 to 175 kg of water, 1080 to 1200 kg of gravel, 620 to 720 kg of machine-made sand, 60 to 120 kg of fly ash and 6 to 9 kg of a water reducing agent. Wherein the water reducing agent is prepared by mixing a viscosity-reducing slow-release polycarboxylic acid mother solution, a coagulation regulating component, an air entraining agent and a defoaming agent according to a mass ratio of (15 to 20): (3 to 7): (0.10 to 0.30): (0.02 to 0.06). The concrete prepared by the invention has good construction performance, and solves the technical problems of early crack control of the aluminoferrite cement in mass concrete construction, too fast initial setting time after pouring and inconvenient construction; the concrete has good harmful ion erosion resistance, and the durability of the concrete at the structural part eroded by seawater is greatly improved; the quick-hardening early-strength concrete formwork has outstanding quick-hardening early-strength characteristics, the turnover utilization rate of the formwork can be well increased, and the construction efficiency of a concrete structure is improved.
本发明公开了一种高抗海水侵蚀高性能混凝土及其制备方法，包括以下重量份原料：铁铝酸盐水泥310～450kg，水160～175kg，碎石1080～1200kg，机制砂620～720kg，粉煤灰60～120kg，减水剂6～9kg。其中，减水剂由降粘缓释聚羧酸母液、调凝组分、引气剂和消泡剂按照质量比(15～20):(3～7):(0.10～0.30):(0.02～0.06)混配而成。本发明制备的混凝土，具有良好的施工性能，解决了铁铝酸盐水泥在大体积混凝土施工中早期裂缝控制、浇筑后初凝时间过快而施工不便的技术难题；具有良好的抗有害离子侵蚀能力，极大的提高了受海水侵蚀结构部位混凝土的耐久性能；具备突出的快硬早强特性，可很好的增加模板的周转使用率，提升混凝土结构的施工效率。
High-performance concrete with high seawater corrosion resistance and preparation method thereof
The invention discloses high-performance concrete with high seawater corrosion resistance and a preparation method of the high-performance concrete. The high-performance concrete is prepared from the following raw materials in parts by weight: 310 to 450 kg of aluminoferrite cement, 160 to 175 kg of water, 1080 to 1200 kg of gravel, 620 to 720 kg of machine-made sand, 60 to 120 kg of fly ash and 6 to 9 kg of a water reducing agent. Wherein the water reducing agent is prepared by mixing a viscosity-reducing slow-release polycarboxylic acid mother solution, a coagulation regulating component, an air entraining agent and a defoaming agent according to a mass ratio of (15 to 20): (3 to 7): (0.10 to 0.30): (0.02 to 0.06). The concrete prepared by the invention has good construction performance, and solves the technical problems of early crack control of the aluminoferrite cement in mass concrete construction, too fast initial setting time after pouring and inconvenient construction; the concrete has good harmful ion erosion resistance, and the durability of the concrete at the structural part eroded by seawater is greatly improved; the quick-hardening early-strength concrete formwork has outstanding quick-hardening early-strength characteristics, the turnover utilization rate of the formwork can be well increased, and the construction efficiency of a concrete structure is improved.
本发明公开了一种高抗海水侵蚀高性能混凝土及其制备方法，包括以下重量份原料：铁铝酸盐水泥310～450kg，水160～175kg，碎石1080～1200kg，机制砂620～720kg，粉煤灰60～120kg，减水剂6～9kg。其中，减水剂由降粘缓释聚羧酸母液、调凝组分、引气剂和消泡剂按照质量比(15～20):(3～7):(0.10～0.30):(0.02～0.06)混配而成。本发明制备的混凝土，具有良好的施工性能，解决了铁铝酸盐水泥在大体积混凝土施工中早期裂缝控制、浇筑后初凝时间过快而施工不便的技术难题；具有良好的抗有害离子侵蚀能力，极大的提高了受海水侵蚀结构部位混凝土的耐久性能；具备突出的快硬早强特性，可很好的增加模板的周转使用率，提升混凝土结构的施工效率。
High-performance concrete with high seawater corrosion resistance and preparation method thereof
一种高抗海水侵蚀高性能混凝土及其制备方法
XIANG SHIYOU (author) / QI DONGYOU (author) / GAO YOU (author) / ZHANG WEI (author) / WANG ZHIYONG (author) / QIU KAIJIAN (author) / SONG FENGWEI (author) / ZOU DELIN (author) / DU ZENGQIANG (author) / LU DEHUA (author)
2023-12-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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