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A platform for research: civil engineering, architecture and urbanism
Preparation method of chemical reaction type cold patch asphalt mixture
The invention provides a preparation method of a chemical reaction type cold patch asphalt mixture. According to the preparation method, a proper amount of a special diluent is doped into asphalt to reduce the viscosity of the asphalt so as to enable the cold patch asphalt mixture to be constructed at normal temperature, a chemical reactant is doped into the asphalt mixture, and after a pavement is repaired, the chemical reactant can react with the special diluent, so that not only is the bonding effect between the asphalt mixture improved, but also the cold patch asphalt mixture has better construction workability. In addition, a calcined product prepared by calcining CaCO3, SiO2 and Fe2O3 can be slowly hydrated after construction of the cold patch asphalt mixture to generate Ca(OH)2, the chemical reactant and oleic acid are promoted to continuously react to generate fatty acid salt, and the resultant can be used for filling gaps of the mixture, so that the structure of the asphalt mixture is denser, and the water stability and the later strength of the mixture can be improved.
本发明提供一种化学反应型冷补沥青混合料的制备方法，该制备方法通过向沥青中掺入适量的特殊稀释剂，降低沥青的黏度，使得该种冷补沥青混合料可以在常温下施工，并通过在沥青混合料中掺入化学反应剂，在对路面进行修补后，该种化学反应剂可以与特殊稀释剂进行反应，不仅提高了沥青混合料之间的粘结作用，还使得冷补沥青混合料具有较好的施工和易性，而且通过煅烧CaCO3、SiO2与Fe2O3制备得到的煅烧物在冷补沥青混合料施工后可以缓慢进行水化，生成Ca(OH)2，促使化学反应剂与油酸可以持续进行反应，生成脂肪酸盐，生成物不仅可以填充混合料的间隙，使沥青混合料结构更加密实，还可以提高混合料的水稳定性能与后期强度。
Preparation method of chemical reaction type cold patch asphalt mixture
The invention provides a preparation method of a chemical reaction type cold patch asphalt mixture. According to the preparation method, a proper amount of a special diluent is doped into asphalt to reduce the viscosity of the asphalt so as to enable the cold patch asphalt mixture to be constructed at normal temperature, a chemical reactant is doped into the asphalt mixture, and after a pavement is repaired, the chemical reactant can react with the special diluent, so that not only is the bonding effect between the asphalt mixture improved, but also the cold patch asphalt mixture has better construction workability. In addition, a calcined product prepared by calcining CaCO3, SiO2 and Fe2O3 can be slowly hydrated after construction of the cold patch asphalt mixture to generate Ca(OH)2, the chemical reactant and oleic acid are promoted to continuously react to generate fatty acid salt, and the resultant can be used for filling gaps of the mixture, so that the structure of the asphalt mixture is denser, and the water stability and the later strength of the mixture can be improved.
本发明提供一种化学反应型冷补沥青混合料的制备方法，该制备方法通过向沥青中掺入适量的特殊稀释剂，降低沥青的黏度，使得该种冷补沥青混合料可以在常温下施工，并通过在沥青混合料中掺入化学反应剂，在对路面进行修补后，该种化学反应剂可以与特殊稀释剂进行反应，不仅提高了沥青混合料之间的粘结作用，还使得冷补沥青混合料具有较好的施工和易性，而且通过煅烧CaCO3、SiO2与Fe2O3制备得到的煅烧物在冷补沥青混合料施工后可以缓慢进行水化，生成Ca(OH)2，促使化学反应剂与油酸可以持续进行反应，生成脂肪酸盐，生成物不仅可以填充混合料的间隙，使沥青混合料结构更加密实，还可以提高混合料的水稳定性能与后期强度。
Preparation method of chemical reaction type cold patch asphalt mixture
一种化学反应型冷补沥青混合料的制备方法
SHEN FAN (author) / LIU FEIYI (author) / WEI GUOSU (author) / YU YONGXING (author) / MAN JITIAN (author) / JIANG YIXIA (author) / ZHANG ZIYI (author) / JIANG TINGWEI (author) / LI GUOLIANG (author) / CHEN CHUQI (author)
2021-05-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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