Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Anti-cracking machine-made sand concrete and preparation method thereof
The invention belongs to the technical field of building materials, and discloses anti-cracking machine-made sand concrete and a preparation method thereof. The anti-cracking machine-made sand concrete is prepared from the following raw materials: cement, coal ash, machine-made sand, coarse aggregate, basalt fiber, water and a polycarboxylic acid water reducing agent, the modified machine-made sand is prepared by wrapping the machine-made sand with a molten rubber mixture glue solution and adhering and coupling the modified nano aluminum oxide on the outer surface of the machine-made sand. The preparation method of the anti-cracking machine-made sand concrete comprises the following steps: mixing dry materials to prepare a mixture, adding water and a water reducing agent into the mixture to prepare mortar, and adding coarse aggregate into the mortar to prepare the machine-made sand concrete. The modified machine-made sand is smooth in surface, regular in shape and easy to uniformly disperse in concrete mortar, the loss speed of free water in mortar pores is reduced, and the anti-cracking performance of machine-made sand concrete can be improved after the modified machine-made sand is doped into the concrete mortar.
本申请属于建筑材料技术领域，本申请公开了一种抗开裂机制砂混凝土及制备方法。本申请中的抗开裂机制砂混凝土的原料包括水泥、粉煤灰、机制砂、粗集料、玄武岩纤维、水和聚羧酸减水剂，其中的机制砂包括改性机制砂，改性机制砂由熔融态的橡胶混合物胶液对机制砂进行包裹并在其外表面黏附偶联改性纳米氧化铝制得。本申请中的抗开裂机制砂混凝土的制备方法包括混合干料制得混合料、混合料加水和减水剂制得砂浆、砂浆加入粗集料制得机制砂混凝土。本申情中的改性机制砂表面光滑、形态规则，在混凝土砂浆中易均匀分散，降低砂浆孔隙内自由水分的流失速度，掺入混凝土砂浆中能提高机制砂混凝土的抗裂性能。
Anti-cracking machine-made sand concrete and preparation method thereof
The invention belongs to the technical field of building materials, and discloses anti-cracking machine-made sand concrete and a preparation method thereof. The anti-cracking machine-made sand concrete is prepared from the following raw materials: cement, coal ash, machine-made sand, coarse aggregate, basalt fiber, water and a polycarboxylic acid water reducing agent, the modified machine-made sand is prepared by wrapping the machine-made sand with a molten rubber mixture glue solution and adhering and coupling the modified nano aluminum oxide on the outer surface of the machine-made sand. The preparation method of the anti-cracking machine-made sand concrete comprises the following steps: mixing dry materials to prepare a mixture, adding water and a water reducing agent into the mixture to prepare mortar, and adding coarse aggregate into the mortar to prepare the machine-made sand concrete. The modified machine-made sand is smooth in surface, regular in shape and easy to uniformly disperse in concrete mortar, the loss speed of free water in mortar pores is reduced, and the anti-cracking performance of machine-made sand concrete can be improved after the modified machine-made sand is doped into the concrete mortar.
本申请属于建筑材料技术领域，本申请公开了一种抗开裂机制砂混凝土及制备方法。本申请中的抗开裂机制砂混凝土的原料包括水泥、粉煤灰、机制砂、粗集料、玄武岩纤维、水和聚羧酸减水剂，其中的机制砂包括改性机制砂，改性机制砂由熔融态的橡胶混合物胶液对机制砂进行包裹并在其外表面黏附偶联改性纳米氧化铝制得。本申请中的抗开裂机制砂混凝土的制备方法包括混合干料制得混合料、混合料加水和减水剂制得砂浆、砂浆加入粗集料制得机制砂混凝土。本申情中的改性机制砂表面光滑、形态规则，在混凝土砂浆中易均匀分散，降低砂浆孔隙内自由水分的流失速度，掺入混凝土砂浆中能提高机制砂混凝土的抗裂性能。
Anti-cracking machine-made sand concrete and preparation method thereof
一种抗开裂机制砂混凝土及制备方法
ZHANG JIAN (Autor:in) / ZUO ZHI (Autor:in) / WANG XIAO (Autor:in) / LIU YANG (Autor:in)
07.01.2025
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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