A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Anti-crack concrete with low shrinkage rate and preparation method thereof
The invention relates to the field of concrete, and particularly discloses anti-crack concrete with a low shrinkage rate and a preparation method of the anti-crack concrete. The anti-crack concrete with the low shrinkage rate is prepared from a cementing material, modified fine aggregate, coarse aggregate, a waterproof agent and water, the preparation method of the modified fine aggregate comprises the following steps: respectively crushing a ceramic waste material and hydrophilic fiber, then taking the ceramic waste material with a specific particle size as a material I to be used, and takingthe hydrophilic fiber with a specific length as a material II to be used; mixing the to-be-used material I and the to-be-used material II in proportion, and performing ball milling to obtain the modified fine aggregate; the preparation method of the anti-crack concrete comprises the following steps: uniformly mixing the waterproof agent and the cementing material to obtain a mixture; adding the mixture into water, and uniformly stirring to obtain a mixed slurry; adding the coarse aggregate into the mixed slurry, and uniformly stirring to obtain a premix; and adding the modified fine aggregateinto the premix, and uniformly stirring to obtain the anti-crack concrete. The anti-crack concrete provided by the invention can improve the utilization rate of the construction waste and reduce thegeneration of the construction waste, and has good anti-cracking performance.
本申请涉及混凝土领域，具体公开了一种收缩率低的抗裂混凝土及其制备方法。一种收缩率低的抗裂混凝土包括胶凝材料、改性细骨料、粗骨料、防水剂和水；改性细骨料的制备方法为：分别破碎陶瓷废弃料、亲水性纤维，然后取特定粒径的陶瓷废弃料作为待用料一，并取特定长度的亲水性纤维作为待用料二；将待用料一与待用料二按配比混合后球磨得到改性细骨料；其制备方法为：将防水剂与胶凝材料均匀混合得到混合料；将混合料加入水中搅拌均匀得到混合浆体；将粗骨料加入混合浆体中，搅拌均匀得到预混物；将改性细骨料加入预混物中，搅拌均匀得到抗裂混凝土。本申请的抗裂混凝土能够提高建筑垃圾的利用率、减少建筑垃圾的产生，并且具有较好的抗裂性能。
Anti-crack concrete with low shrinkage rate and preparation method thereof
The invention relates to the field of concrete, and particularly discloses anti-crack concrete with a low shrinkage rate and a preparation method of the anti-crack concrete. The anti-crack concrete with the low shrinkage rate is prepared from a cementing material, modified fine aggregate, coarse aggregate, a waterproof agent and water, the preparation method of the modified fine aggregate comprises the following steps: respectively crushing a ceramic waste material and hydrophilic fiber, then taking the ceramic waste material with a specific particle size as a material I to be used, and takingthe hydrophilic fiber with a specific length as a material II to be used; mixing the to-be-used material I and the to-be-used material II in proportion, and performing ball milling to obtain the modified fine aggregate; the preparation method of the anti-crack concrete comprises the following steps: uniformly mixing the waterproof agent and the cementing material to obtain a mixture; adding the mixture into water, and uniformly stirring to obtain a mixed slurry; adding the coarse aggregate into the mixed slurry, and uniformly stirring to obtain a premix; and adding the modified fine aggregateinto the premix, and uniformly stirring to obtain the anti-crack concrete. The anti-crack concrete provided by the invention can improve the utilization rate of the construction waste and reduce thegeneration of the construction waste, and has good anti-cracking performance.
本申请涉及混凝土领域，具体公开了一种收缩率低的抗裂混凝土及其制备方法。一种收缩率低的抗裂混凝土包括胶凝材料、改性细骨料、粗骨料、防水剂和水；改性细骨料的制备方法为：分别破碎陶瓷废弃料、亲水性纤维，然后取特定粒径的陶瓷废弃料作为待用料一，并取特定长度的亲水性纤维作为待用料二；将待用料一与待用料二按配比混合后球磨得到改性细骨料；其制备方法为：将防水剂与胶凝材料均匀混合得到混合料；将混合料加入水中搅拌均匀得到混合浆体；将粗骨料加入混合浆体中，搅拌均匀得到预混物；将改性细骨料加入预混物中，搅拌均匀得到抗裂混凝土。本申请的抗裂混凝土能够提高建筑垃圾的利用率、减少建筑垃圾的产生，并且具有较好的抗裂性能。
Anti-crack concrete with low shrinkage rate and preparation method thereof
一种收缩率低的抗裂混凝土及其制备方法
TANG CHANGWEI (author) / GAO CHUNLEI (author) / LIN YONG (author) / TAN RUIXIN (author) / GUO ZIKUI (author) / ZHENG WEIWEN (author)
2020-12-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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