Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ultrahigh-toughness polymer concrete and preparation method thereof
The invention belongs to the technical field of concrete engineering materials, and discloses ultrahigh-toughness polymer concrete and a preparation method thereof. The concrete is prepared from the following raw materials by weight per cubic meter: 350 to 480kg/m < 3 > of cement, 1100 to 1250kg/m < 3 > of graded broken stone, 600 to 800kg/m < 3 > of tailing sand, 60 to 150kg/m < 3 > of superfine admixture, 30 to 50kg/m < 3 > of polymer, 1 to 5kg/m < 3 > of fiber and 8 to 16kg/m < 3 > of efficient water reducing agent, wherein the water-cement ratio is 0.30 to 0.35. According to the invention, through combined use of the polymer and the fiber, various properties of the concrete are improved, particularly, the fracture resistance and the splitting resistance of the concrete are greatly improved, the compression-flexural ratio is reduced, and then the risk of generating cracks is reduced, so that the concrete has ultrahigh toughness.
本发明属于混凝土工程材料技术领域，公开了一种超高韧性聚合物混凝土及其制备方法。该混凝土按每方重量计包括以下原料：水泥350～480kg/m3、级配碎石1100～1250kg/m3、尾矿砂600～800kg/m3、超细掺合料60～150kg/m3、聚合物30～50kg/m3、纤维1～5kg/m3、高效减水剂8～16kg/m3，水灰比0.30～0.35。本发明通过聚合物与纤维的联合使用，改善混凝土的各项性能，尤其是大幅提高混凝土的抗折和抗劈裂强度，降低压折比，进而降低产生裂缝的风险，从而使混凝土获得超高韧性。
Ultrahigh-toughness polymer concrete and preparation method thereof
The invention belongs to the technical field of concrete engineering materials, and discloses ultrahigh-toughness polymer concrete and a preparation method thereof. The concrete is prepared from the following raw materials by weight per cubic meter: 350 to 480kg/m < 3 > of cement, 1100 to 1250kg/m < 3 > of graded broken stone, 600 to 800kg/m < 3 > of tailing sand, 60 to 150kg/m < 3 > of superfine admixture, 30 to 50kg/m < 3 > of polymer, 1 to 5kg/m < 3 > of fiber and 8 to 16kg/m < 3 > of efficient water reducing agent, wherein the water-cement ratio is 0.30 to 0.35. According to the invention, through combined use of the polymer and the fiber, various properties of the concrete are improved, particularly, the fracture resistance and the splitting resistance of the concrete are greatly improved, the compression-flexural ratio is reduced, and then the risk of generating cracks is reduced, so that the concrete has ultrahigh toughness.
本发明属于混凝土工程材料技术领域，公开了一种超高韧性聚合物混凝土及其制备方法。该混凝土按每方重量计包括以下原料：水泥350～480kg/m3、级配碎石1100～1250kg/m3、尾矿砂600～800kg/m3、超细掺合料60～150kg/m3、聚合物30～50kg/m3、纤维1～5kg/m3、高效减水剂8～16kg/m3，水灰比0.30～0.35。本发明通过聚合物与纤维的联合使用，改善混凝土的各项性能，尤其是大幅提高混凝土的抗折和抗劈裂强度，降低压折比，进而降低产生裂缝的风险，从而使混凝土获得超高韧性。
Ultrahigh-toughness polymer concrete and preparation method thereof
超高韧性聚合物混凝土及其制备方法
WANG HAO (Autor:in) / ZHANG FANG (Autor:in) / LIAO HONGYU (Autor:in)
13.10.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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