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A platform for research: civil engineering, architecture and urbanism
Preparation method of early-strength quick-hardening cement mortar
The invention discloses a preparation method of early-strength quick-hardening cement mortar, and relates to the field of concrete. The preparation method comprises the steps that tap water and an additive are poured into a stirring barrel to be simply stirred, ordinary cement, sulphoaluminate cement and yellow sand are added while stirring is conducted, a corrosion inhibitor is added while stirring is conducted, the mixed slurry is poured into a mold, standing curing and natural curing are conducted, after demoulding into storage, regular watering maintenance is carried out to obtain the early-strength quick-hardening cement mortar. By preparing the early-strength quick-hardening cement mortar, the problem that the demoulding time of a component is prolonged due to small heat storage capacity and slow hydration reaction is solved; the demolding time of the early-strength quick-hardening cement mortar component can be advanced by 5-6 hours, the surface of the early-strength quick-hardening cement mortar component is denser, air holes are fewer, the probability of shrinkage cracks is lower, calcium hydroxide can react with the aluminum sulfate component to generate ettringite, and therefore the purposes of coagulation acceleration and early strength are achieved, the later strength of the component is not lost, and the anti-permeability and freeze-thaw resistance are better.
本发明公开了一种早强快硬水泥砂浆的制备方法，涉及混凝土领域，通过将自来水和外加剂倒入搅拌桶中简单搅拌，边搅拌边加入普通水泥、硫铝酸盐水泥和黄沙，边搅拌边加入阻锈剂，将混合好的浆体倒入模具中，静停养护，自然养护，脱模入库后进行定期洒水养护，得到该早强快硬水泥砂浆，通过制备该早强快硬水泥砂浆，解决了构件因自身蓄热量小、水化反应慢所造成脱模时间延长的问题；早强快硬水泥砂浆构件脱模时间可提前5‑6个小时，该早强快硬水泥砂浆构件表面更密实，气孔更少，出现收缩裂纹的概率更低，氢氧化钙可以和硫酸铝组分反应生成钙矾石，从而达到促凝、早强的目的，对构件的后期强度无损失，且抗渗性和抗冻融性更好。
Preparation method of early-strength quick-hardening cement mortar
The invention discloses a preparation method of early-strength quick-hardening cement mortar, and relates to the field of concrete. The preparation method comprises the steps that tap water and an additive are poured into a stirring barrel to be simply stirred, ordinary cement, sulphoaluminate cement and yellow sand are added while stirring is conducted, a corrosion inhibitor is added while stirring is conducted, the mixed slurry is poured into a mold, standing curing and natural curing are conducted, after demoulding into storage, regular watering maintenance is carried out to obtain the early-strength quick-hardening cement mortar. By preparing the early-strength quick-hardening cement mortar, the problem that the demoulding time of a component is prolonged due to small heat storage capacity and slow hydration reaction is solved; the demolding time of the early-strength quick-hardening cement mortar component can be advanced by 5-6 hours, the surface of the early-strength quick-hardening cement mortar component is denser, air holes are fewer, the probability of shrinkage cracks is lower, calcium hydroxide can react with the aluminum sulfate component to generate ettringite, and therefore the purposes of coagulation acceleration and early strength are achieved, the later strength of the component is not lost, and the anti-permeability and freeze-thaw resistance are better.
本发明公开了一种早强快硬水泥砂浆的制备方法，涉及混凝土领域，通过将自来水和外加剂倒入搅拌桶中简单搅拌，边搅拌边加入普通水泥、硫铝酸盐水泥和黄沙，边搅拌边加入阻锈剂，将混合好的浆体倒入模具中，静停养护，自然养护，脱模入库后进行定期洒水养护，得到该早强快硬水泥砂浆，通过制备该早强快硬水泥砂浆，解决了构件因自身蓄热量小、水化反应慢所造成脱模时间延长的问题；早强快硬水泥砂浆构件脱模时间可提前5‑6个小时，该早强快硬水泥砂浆构件表面更密实，气孔更少，出现收缩裂纹的概率更低，氢氧化钙可以和硫酸铝组分反应生成钙矾石，从而达到促凝、早强的目的，对构件的后期强度无损失，且抗渗性和抗冻融性更好。
Preparation method of early-strength quick-hardening cement mortar
一种早强快硬水泥砂浆的制备方法
ZHOU SHUIMING (author) / LYU QINGANG (author) / DONG WEILIANG (author) / CAO LEI (author) / XIANG SHUIQIANG (author) / YING BIN (author)
2021-12-24
Patent
Electronic Resource
Chinese
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