Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-performance anti-crack concrete and preparation method thereof
The invention discloses a high-performance anti-crack concrete, which is prepared from the following components in parts by mass: 631 parts of cement, 524 parts of water, 813 parts of quartz sand, 130-160 parts of blast furnace slag powder, 5-8 parts of a water reducing agent, 7-8 parts of an early strength agent and 9-12 parts of an air entraining agent. A preparation method of the high-performance anti-crack concrete comprises the following steps: step 1, screening quartz sand; step 2, weighing the raw materials and additives; step 3, stirring the raw materials; step 4, adding an additive, and stirring; step 5, pouring and maintaining. Compared with the prior art, the concrete has the advantages that the concrete is suitable for high-temperature arid or severe cold regions, by doping theblast furnace slag powder, the consumption of cement can be reduced to a certain extent, the flowability of the concrete is improved, the water reducing agent with a water reducing rate of more than35% is selected to reduce the mixing water consumption, and the early strength agent is added to improve the early strength of the concrete and accelerate the hydration speed of the cement, thereby reducing the later cracking degree.
本发明公开了一种高性能抗裂混凝土，其各组分及质量配比选取如下范围：水泥：631份、水524份、石英砂813份、高炉矿渣粉130‑160份、减水剂5‑8份、早强剂7‑8份、引气剂9‑12份。一种高性能抗裂混凝土的制备方法，包括如下步骤：步骤一：筛选石英砂；步骤二：称量原材料及外加剂；步骤三：原料搅拌；步骤四：加入外加剂搅拌；步骤五浇筑养护；与现有技术相比，本发明的有益效果是：本发明所提供的一种高性能抗裂混凝土，适用于高温干旱或严寒地区，通过掺入高炉矿渣粉，可在一定程度上减少水泥的用量，并改善混凝土的流动性，选取减水率大于35%的减水剂，来减少拌合用水量，选取早强剂，提高混凝土早期强度，加速水泥水化速度，从而减少后期开裂程度。
High-performance anti-crack concrete and preparation method thereof
The invention discloses a high-performance anti-crack concrete, which is prepared from the following components in parts by mass: 631 parts of cement, 524 parts of water, 813 parts of quartz sand, 130-160 parts of blast furnace slag powder, 5-8 parts of a water reducing agent, 7-8 parts of an early strength agent and 9-12 parts of an air entraining agent. A preparation method of the high-performance anti-crack concrete comprises the following steps: step 1, screening quartz sand; step 2, weighing the raw materials and additives; step 3, stirring the raw materials; step 4, adding an additive, and stirring; step 5, pouring and maintaining. Compared with the prior art, the concrete has the advantages that the concrete is suitable for high-temperature arid or severe cold regions, by doping theblast furnace slag powder, the consumption of cement can be reduced to a certain extent, the flowability of the concrete is improved, the water reducing agent with a water reducing rate of more than35% is selected to reduce the mixing water consumption, and the early strength agent is added to improve the early strength of the concrete and accelerate the hydration speed of the cement, thereby reducing the later cracking degree.
本发明公开了一种高性能抗裂混凝土，其各组分及质量配比选取如下范围：水泥：631份、水524份、石英砂813份、高炉矿渣粉130‑160份、减水剂5‑8份、早强剂7‑8份、引气剂9‑12份。一种高性能抗裂混凝土的制备方法，包括如下步骤：步骤一：筛选石英砂；步骤二：称量原材料及外加剂；步骤三：原料搅拌；步骤四：加入外加剂搅拌；步骤五浇筑养护；与现有技术相比，本发明的有益效果是：本发明所提供的一种高性能抗裂混凝土，适用于高温干旱或严寒地区，通过掺入高炉矿渣粉，可在一定程度上减少水泥的用量，并改善混凝土的流动性，选取减水率大于35%的减水剂，来减少拌合用水量，选取早强剂，提高混凝土早期强度，加速水泥水化速度，从而减少后期开裂程度。
High-performance anti-crack concrete and preparation method thereof
一种高性能抗裂混凝土及其制备方法
SUN XUEJUN (Autor:in) / QIAN SHENCHUN (Autor:in) / PENG SHENKAI (Autor:in) / LIU XIAOHAN (Autor:in) / CUI JIAN (Autor:in) / SHEN WEICHENG (Autor:in) / WEI MING (Autor:in) / SHEN XIN (Autor:in)
18.09.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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