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Alkali-resistant anti-freezing concrete and preparation method thereof
The invention relates to the technical field of concrete, in particular to alkali-resistant anti-freezing concrete and a preparation method thereof. The alkali-resistant and anti-freezing concrete comprises the following components in parts by weight: 300-400 parts of cement; 150 to 250 parts of water; 15-35 parts of an expanding agent; 500 to 650 parts of fine aggregate; 800 to 1000 parts of coarse aggregate; the composite material comprises the following components in parts by weight: 1.5-2.5 parts of a water reducing agent and 50-80 parts of reinforced fibers, and the reinforced fibers are formed by compounding polypropylene serving as a matrix with one or more of PVA (polyvinyl alcohol), PVC (polyvinyl chloride) and SBS (styrene-butadiene-styrene). The preparation method of the alkali-resistant anti-freezing concrete comprises the following steps: uniformly mixing the cement, the fine aggregate and the coarse aggregate; mixing the expanding agent with water, adding into a stirrer, and stirring; and adding the water reducing agent and the reinforced fibers, fully stirring, and pouring and molding to obtain the alkali-resistant anti-freezing concrete. By optimizing the proportion and introducing the composite reinforced fibers, the crack resistance, impermeability, alkali resistance and frost resistance of the concrete are remarkably improved. Particularly in high-altitude areas, the concrete road can effectively resist freezing and saline-alkali erosion, and the service life is remarkably prolonged.
本申请涉及混凝土技术领域，具体而言涉及一种耐碱抗冻的混凝土及其制备方法。一种耐碱抗冻的混凝土，包括如下重量份数的组分：水泥300‑400份；水150‑250份；膨胀剂15‑35份；细骨料500‑650份；粗骨料800‑1000份；减水剂1.5‑2.5份，增强纤维50‑80份，所述增强纤维是以聚丙烯为基体，与PVA、PVC、SBS中的一种或多种复合而成。一种耐碱抗冻的混凝土的制备方法，包括将水泥、细骨料和粗骨料混合均匀；将膨胀剂与水混合后加入搅拌机搅拌；加入减水剂和增强纤维充分搅拌，浇筑成型后即得耐碱抗冻混凝土。本申请通过优化配比和引入复合增强纤维，混凝土的抗裂、抗渗、抗碱和抗冻性能得到了显著提升。特别是在高海拔地区，混凝土道路能够有效抵抗冰冻和盐碱侵蚀，显著延长了使用寿命。
Alkali-resistant anti-freezing concrete and preparation method thereof
The invention relates to the technical field of concrete, in particular to alkali-resistant anti-freezing concrete and a preparation method thereof. The alkali-resistant and anti-freezing concrete comprises the following components in parts by weight: 300-400 parts of cement; 150 to 250 parts of water; 15-35 parts of an expanding agent; 500 to 650 parts of fine aggregate; 800 to 1000 parts of coarse aggregate; the composite material comprises the following components in parts by weight: 1.5-2.5 parts of a water reducing agent and 50-80 parts of reinforced fibers, and the reinforced fibers are formed by compounding polypropylene serving as a matrix with one or more of PVA (polyvinyl alcohol), PVC (polyvinyl chloride) and SBS (styrene-butadiene-styrene). The preparation method of the alkali-resistant anti-freezing concrete comprises the following steps: uniformly mixing the cement, the fine aggregate and the coarse aggregate; mixing the expanding agent with water, adding into a stirrer, and stirring; and adding the water reducing agent and the reinforced fibers, fully stirring, and pouring and molding to obtain the alkali-resistant anti-freezing concrete. By optimizing the proportion and introducing the composite reinforced fibers, the crack resistance, impermeability, alkali resistance and frost resistance of the concrete are remarkably improved. Particularly in high-altitude areas, the concrete road can effectively resist freezing and saline-alkali erosion, and the service life is remarkably prolonged.
本申请涉及混凝土技术领域，具体而言涉及一种耐碱抗冻的混凝土及其制备方法。一种耐碱抗冻的混凝土，包括如下重量份数的组分：水泥300‑400份；水150‑250份；膨胀剂15‑35份；细骨料500‑650份；粗骨料800‑1000份；减水剂1.5‑2.5份，增强纤维50‑80份，所述增强纤维是以聚丙烯为基体，与PVA、PVC、SBS中的一种或多种复合而成。一种耐碱抗冻的混凝土的制备方法，包括将水泥、细骨料和粗骨料混合均匀；将膨胀剂与水混合后加入搅拌机搅拌；加入减水剂和增强纤维充分搅拌，浇筑成型后即得耐碱抗冻混凝土。本申请通过优化配比和引入复合增强纤维，混凝土的抗裂、抗渗、抗碱和抗冻性能得到了显著提升。特别是在高海拔地区，混凝土道路能够有效抵抗冰冻和盐碱侵蚀，显著延长了使用寿命。
Alkali-resistant anti-freezing concrete and preparation method thereof
一种耐碱抗冻的混凝土及其制备方法
ZHAI DUZHU (author) / TAO JINLING (author)
2024-08-27
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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