Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for compositely reinforcing recycled fine aggregate and method for preparing mortar
The invention discloses a method for compounding and reinforcing recycled fine aggregate, which comprises the following steps: S1, mechanically crushing, cleaning and screening construction waste to obtain recycled aggregate with the particle size of 0.15-4.75 mm; s2, taking hydrochloric acid, adding water for dilution, and uniformly mixing to obtain a diluted hydrochloric acid solution; s3, the recycled aggregate is placed in a diluted hydrochloric acid solution to be soaked for 15-30 min, and the aggregate is fished out to be soaked, washed and aired; s4, the recycled aggregate dried in the S3 is sieved through a sand standard sieve, recycled fine aggregate of 0.15-4.75 mm is sieved out, and the recycled fine aggregate obtained after preliminary strengthening is completed is obtained; s5, the recycled fine aggregate subjected to preliminary strengthening in S4 is placed in a silane modified solution to be soaked for 24-72 h and fished out to be aired, and the recycled fine aggregate subjected to compound strengthening is obtained.The recycled fine aggregate has the technical effects that the obtained recycled fine aggregate is few in crack, high in strength and wide in application range, and the recycled fine aggregate can replace natural sand to be prepared into masonry mortar.
本发明公开了一种复合强化再生细骨料的方法，包括以下步骤：S1:将建筑垃圾进行机械破碎、清洗和筛选，获得粒径为0.15‑4.75mm的再生骨料；S2:取盐酸加水稀释，混合均匀，得到稀盐酸溶液；S3:将再生骨料置于稀盐酸溶液中浸泡15‑30min，捞出骨料浸洗晾干；S4:将S3中晾干的再生骨料过砂子标准筛，筛出0.15‑4.75mm的再生细骨料，即为初步强化完成的再生细骨料；S5:将S4中初步强化完成的再生细骨料置于硅烷改性溶液中浸泡24‑72h，捞出晾干，即为复合强化完成的再生细骨料，其技术效果为能够得到的再生细骨料裂纹少、强度高、应用范围广的再生细骨料，能够替代天然砂制备砌筑砂浆。
Method for compositely reinforcing recycled fine aggregate and method for preparing mortar
The invention discloses a method for compounding and reinforcing recycled fine aggregate, which comprises the following steps: S1, mechanically crushing, cleaning and screening construction waste to obtain recycled aggregate with the particle size of 0.15-4.75 mm; s2, taking hydrochloric acid, adding water for dilution, and uniformly mixing to obtain a diluted hydrochloric acid solution; s3, the recycled aggregate is placed in a diluted hydrochloric acid solution to be soaked for 15-30 min, and the aggregate is fished out to be soaked, washed and aired; s4, the recycled aggregate dried in the S3 is sieved through a sand standard sieve, recycled fine aggregate of 0.15-4.75 mm is sieved out, and the recycled fine aggregate obtained after preliminary strengthening is completed is obtained; s5, the recycled fine aggregate subjected to preliminary strengthening in S4 is placed in a silane modified solution to be soaked for 24-72 h and fished out to be aired, and the recycled fine aggregate subjected to compound strengthening is obtained.The recycled fine aggregate has the technical effects that the obtained recycled fine aggregate is few in crack, high in strength and wide in application range, and the recycled fine aggregate can replace natural sand to be prepared into masonry mortar.
本发明公开了一种复合强化再生细骨料的方法，包括以下步骤：S1:将建筑垃圾进行机械破碎、清洗和筛选，获得粒径为0.15‑4.75mm的再生骨料；S2:取盐酸加水稀释，混合均匀，得到稀盐酸溶液；S3:将再生骨料置于稀盐酸溶液中浸泡15‑30min，捞出骨料浸洗晾干；S4:将S3中晾干的再生骨料过砂子标准筛，筛出0.15‑4.75mm的再生细骨料，即为初步强化完成的再生细骨料；S5:将S4中初步强化完成的再生细骨料置于硅烷改性溶液中浸泡24‑72h，捞出晾干，即为复合强化完成的再生细骨料，其技术效果为能够得到的再生细骨料裂纹少、强度高、应用范围广的再生细骨料，能够替代天然砂制备砌筑砂浆。
Method for compositely reinforcing recycled fine aggregate and method for preparing mortar
一种复合强化再生细骨料的方法及制备砂浆的方法
YANG FEI (Autor:in) / ZHOU WEI (Autor:in) / MA SHUSHAN (Autor:in) / ZHANG YONGLIANG (Autor:in) / ZENG ZHIYONG (Autor:in) / WANG ZHAN (Autor:in) / WANG JUNWEI (Autor:in) / LI KANG (Autor:in)
01.11.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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