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Expanding agent for cement-based self-leveling mortar as well as preparation method and application of expanding agent
The invention belongs to the field of concrete and mortar expanding agents, and discloses an expanding agent for cement-based self-leveling mortar as well as a preparation method and application of the expanding agent. The expanding agent comprises the following raw materials: calcium oxide, silicon oxide, aluminum oxide, sulfur trioxide, magnesium oxide, ferric oxide and titanium dioxide. The expanding agent can overcome the defect that the compressive stress generated by a traditional expanding agent is insufficient to compensate the tensile stress generated by shrinkage; the expansion release time can be matched with the hydration, coagulation and hardening time of concrete, the expanding agent has the advantages of small mixing amount, low alkali content and the like, has good effectsof balancing and compensating early strength and later strength and balancing and resisting early shrinkage and later shrinkage of concrete and mortar, effectively prevents the concrete and the mortarfrom cracking, and improves the impermeability, carbonization resistance, erosion resistance, pollution resistance and other durability of the concrete and the mortar; the preparation method is simple and convenient to construct.
本发明属于混凝土、砂浆膨胀剂领域，公开了一种水泥基自流平砂浆用膨胀剂及其制备方法与应用，该膨胀剂包括以下原料：氧化钙、氧化硅、氧化铝、三氧化硫、氧化镁、三氧化二铁和二氧化钛；该膨胀剂可解决传统膨胀剂产生的压应力不足以抵偿收缩产生拉应力的缺陷，其膨胀释放时间可以与混凝土水化、凝结、硬化时间相匹配，具有掺量小、碱含量低等优势，具有良好的平衡补偿早、后期强度，平衡抵抗混凝土和砂浆早、后期收缩的效果，有效防止混凝土和砂浆开裂，提高其抗渗、抗碳化、抗侵蚀、抗污染等耐久性能；其制备方法简单，施工方便。
Expanding agent for cement-based self-leveling mortar as well as preparation method and application of expanding agent
The invention belongs to the field of concrete and mortar expanding agents, and discloses an expanding agent for cement-based self-leveling mortar as well as a preparation method and application of the expanding agent. The expanding agent comprises the following raw materials: calcium oxide, silicon oxide, aluminum oxide, sulfur trioxide, magnesium oxide, ferric oxide and titanium dioxide. The expanding agent can overcome the defect that the compressive stress generated by a traditional expanding agent is insufficient to compensate the tensile stress generated by shrinkage; the expansion release time can be matched with the hydration, coagulation and hardening time of concrete, the expanding agent has the advantages of small mixing amount, low alkali content and the like, has good effectsof balancing and compensating early strength and later strength and balancing and resisting early shrinkage and later shrinkage of concrete and mortar, effectively prevents the concrete and the mortarfrom cracking, and improves the impermeability, carbonization resistance, erosion resistance, pollution resistance and other durability of the concrete and the mortar; the preparation method is simple and convenient to construct.
本发明属于混凝土、砂浆膨胀剂领域，公开了一种水泥基自流平砂浆用膨胀剂及其制备方法与应用，该膨胀剂包括以下原料：氧化钙、氧化硅、氧化铝、三氧化硫、氧化镁、三氧化二铁和二氧化钛；该膨胀剂可解决传统膨胀剂产生的压应力不足以抵偿收缩产生拉应力的缺陷，其膨胀释放时间可以与混凝土水化、凝结、硬化时间相匹配，具有掺量小、碱含量低等优势，具有良好的平衡补偿早、后期强度，平衡抵抗混凝土和砂浆早、后期收缩的效果，有效防止混凝土和砂浆开裂，提高其抗渗、抗碳化、抗侵蚀、抗污染等耐久性能；其制备方法简单，施工方便。
Expanding agent for cement-based self-leveling mortar as well as preparation method and application of expanding agent
一种水泥基自流平砂浆用膨胀剂及其制备方法与应用
LIU WEIFENG (author) / ZHAO YUNPENG (author)
2020-10-30
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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