A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention provides a high-performance concrete admixture and a preparation method thereof, and relates to the technical field of concrete. The high-performance concrete admixture is prepared from the following raw materials in parts by weight: 20 to 60 parts of slag powder, 15 to 35 parts of fly ash, 20 to 60 parts of silica fume, 1 to 8 parts of dihydrate gypsum, 3 to 12 parts of glass beads, 0.2 to 1.5 parts of polycarboxylic acid powder and 0.01 to 0.08 part of sodium gluconate. The prepared high-performance concrete admixture can be added into concrete according to the proportion of 10-15%, the later strength of the concrete can be greatly improved, the cement hydration heat during concrete solidification can be reduced, the release speed and peak value of the hydration heat can be reduced, and therefore cracking of the concrete and generation of cracks are reduced, and the service life of the concrete is prolonged. The water consumption for mixing the concrete can be reduced, the setting time of the concrete is prolonged, and the slump loss of the concrete is reduced.
本申请提出了一种高性能混凝土掺合料及其制备方法，涉及混凝土技术领域。一种高性能混凝土掺合料，按重量份计，包括如下原料：矿渣粉20‑60份、粉煤灰15‑35份、微硅粉20‑60份、二水石膏1‑8份、玻璃微珠3‑12份、聚羧酸粉0.2‑1.5份和葡萄糖酸钠0.01‑0.08份。本申请制备的高性能混凝土掺合料可以按照10‑15％的比例添加到混凝土中，其能够极大的提高混凝土的后期强度，可以减少混凝土凝固时的水泥水化热、降低水化热的释放速度和峰值，从而减少混凝土的开裂和裂缝的产生，能减少混凝土的拌合用水量，延长混凝土凝固时间、减少混凝土的塌落度损失。
The invention provides a high-performance concrete admixture and a preparation method thereof, and relates to the technical field of concrete. The high-performance concrete admixture is prepared from the following raw materials in parts by weight: 20 to 60 parts of slag powder, 15 to 35 parts of fly ash, 20 to 60 parts of silica fume, 1 to 8 parts of dihydrate gypsum, 3 to 12 parts of glass beads, 0.2 to 1.5 parts of polycarboxylic acid powder and 0.01 to 0.08 part of sodium gluconate. The prepared high-performance concrete admixture can be added into concrete according to the proportion of 10-15%, the later strength of the concrete can be greatly improved, the cement hydration heat during concrete solidification can be reduced, the release speed and peak value of the hydration heat can be reduced, and therefore cracking of the concrete and generation of cracks are reduced, and the service life of the concrete is prolonged. The water consumption for mixing the concrete can be reduced, the setting time of the concrete is prolonged, and the slump loss of the concrete is reduced.
本申请提出了一种高性能混凝土掺合料及其制备方法，涉及混凝土技术领域。一种高性能混凝土掺合料，按重量份计，包括如下原料：矿渣粉20‑60份、粉煤灰15‑35份、微硅粉20‑60份、二水石膏1‑8份、玻璃微珠3‑12份、聚羧酸粉0.2‑1.5份和葡萄糖酸钠0.01‑0.08份。本申请制备的高性能混凝土掺合料可以按照10‑15％的比例添加到混凝土中，其能够极大的提高混凝土的后期强度，可以减少混凝土凝固时的水泥水化热、降低水化热的释放速度和峰值，从而减少混凝土的开裂和裂缝的产生，能减少混凝土的拌合用水量，延长混凝土凝固时间、减少混凝土的塌落度损失。
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