Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Dry-mixed waterproof mortar prepared from recycled aggregate and preparation method thereof
The invention provides dry-mixed waterproof mortar prepared from recycled aggregate and a preparation method thereof. The preparation method comprises the following steps: repeatedly crushing, refining, cleaning and screening construction waste, and obtaining recycled fine aggregate; modifying the recycled fine aggregate by adopting polyether polyol, sodium silicate and a coupling agent to obtain modified recycled fine aggregate; and then, weighing ordinary Portland cement, quick-hardening sulphoaluminate cement, the modified recycled fine aggregate, redispersible latex powder, hydroxypropyl methyl cellulose and an organic silicon water repellent in parts by weight, and uniformly mixing to obtain the dry-mixed waterproof mortar. According to the technical scheme, by modifying the recycled fine aggregate, the comprehensive performance of the obtained modified recycled fine aggregate dry-mixed waterproof mortar is greatly improved, the performance of the modified recycled fine aggregate dry-mixed waterproof mortar is equivalent to or even slightly superior to that of natural river sand dry-mixed waterproof mortar, resource utilization of construction waste is achieved, and waste is turned into wealth.
本发明提供了一种利用再生骨料制备的干混防水砂浆及其制备方法，其中，制备方法包括以下步骤：将建筑垃圾进行反复破碎细化、清洗和筛选，得到再生细骨料；采用聚醚多元醇、硅酸钠和偶联剂对再生细骨料进行改性，获得改性再生细骨料；接着，按重量份称取普通硅酸盐水泥、快硬硫铝酸盐水泥、改性再生细骨料、可再分散乳胶粉、羟丙基甲基纤维素和有机硅憎水剂，混合均匀，制得干混防水砂浆。上述技术方案通过对再生细骨料进行改性，获得的改性再生细骨料干混防水砂浆的综合性能都大大改善，并且改性再生细骨料干混防水砂浆与天然河砂干混防水砂浆的性能相当，甚至略优，实现了建筑垃圾资源化利用，变废为宝。
Dry-mixed waterproof mortar prepared from recycled aggregate and preparation method thereof
The invention provides dry-mixed waterproof mortar prepared from recycled aggregate and a preparation method thereof. The preparation method comprises the following steps: repeatedly crushing, refining, cleaning and screening construction waste, and obtaining recycled fine aggregate; modifying the recycled fine aggregate by adopting polyether polyol, sodium silicate and a coupling agent to obtain modified recycled fine aggregate; and then, weighing ordinary Portland cement, quick-hardening sulphoaluminate cement, the modified recycled fine aggregate, redispersible latex powder, hydroxypropyl methyl cellulose and an organic silicon water repellent in parts by weight, and uniformly mixing to obtain the dry-mixed waterproof mortar. According to the technical scheme, by modifying the recycled fine aggregate, the comprehensive performance of the obtained modified recycled fine aggregate dry-mixed waterproof mortar is greatly improved, the performance of the modified recycled fine aggregate dry-mixed waterproof mortar is equivalent to or even slightly superior to that of natural river sand dry-mixed waterproof mortar, resource utilization of construction waste is achieved, and waste is turned into wealth.
本发明提供了一种利用再生骨料制备的干混防水砂浆及其制备方法，其中，制备方法包括以下步骤：将建筑垃圾进行反复破碎细化、清洗和筛选，得到再生细骨料；采用聚醚多元醇、硅酸钠和偶联剂对再生细骨料进行改性，获得改性再生细骨料；接着，按重量份称取普通硅酸盐水泥、快硬硫铝酸盐水泥、改性再生细骨料、可再分散乳胶粉、羟丙基甲基纤维素和有机硅憎水剂，混合均匀，制得干混防水砂浆。上述技术方案通过对再生细骨料进行改性，获得的改性再生细骨料干混防水砂浆的综合性能都大大改善，并且改性再生细骨料干混防水砂浆与天然河砂干混防水砂浆的性能相当，甚至略优，实现了建筑垃圾资源化利用，变废为宝。
Dry-mixed waterproof mortar prepared from recycled aggregate and preparation method thereof
一种利用再生骨料制备的干混防水砂浆及其制备方法
LAI GUANGXING (Autor:in) / YIN JIANLI (Autor:in) / CHEN YUJIA (Autor:in) / YE JUNHUI (Autor:in) / XIAO WEI (Autor:in) / GUO YUANQIANG (Autor:in) / LIN TIANXING (Autor:in)
06.04.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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