A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Recycled aggregate environment-friendly anti-crack premixed concrete and preparation method thereof
The invention discloses recycled aggregate environment-friendly anti-crack premixed concrete and a preparation method thereof. The recycled aggregate environment-friendly anti-cracking premixed concrete comprises the following components: cement, mineral powder, fine aggregate, coarse aggregate, sodium citrate, zeolite powder, a water reducing agent, steel fibers, a super-reinforcing agent and a coagulant retaining agent, wherein the super-reinforcing agent is a mixture of polyvinyl alcohol and a polycarboxylate water reducing agent. The super reinforcing agent can improve the strength of concrete. The preparation method comprises the following steps: uniformly mixing steel fibers, water, a water reducing agent, a coagulant keeping agent and a modifier by using a stirrer, and standing for 60 minutes; adding the modified cement, the fine aggregate and the coarse aggregate into a stirrer, and stirring at the speed of 80 r/min for 3 h; adjusting the rotating speed of the stirrer, and continuously stirring at 10 revolutions per minute; adding mineral powder and an expanding agent; the super reinforcing agent can improve the strength of concrete.
本发明公开了一种再生骨料环保抗裂预拌混凝土及其制备方法，所述再生骨料环保抗裂预拌混凝土混凝土包括有如下成分水泥、矿粉、细骨料、粗骨料、柠檬酸钠、沸石粉、减水剂、钢纤维、超增强剂、保凝剂所述超增强剂为聚乙烯醇与聚羧酸盐减水剂的混合物。所述超增强剂能够提高混凝土的强度。将钢纤维、水、减水剂、保凝剂、改性剂利用搅拌机混合均匀，放置60min；在搅拌机中，加入改性水泥、细骨料、粗骨料，以80转/min搅拌3h；调整搅拌机转速，以10转/min持续搅拌；加入矿粉、膨胀剂。所述超增强剂能够提高混凝土的强度。
Recycled aggregate environment-friendly anti-crack premixed concrete and preparation method thereof
The invention discloses recycled aggregate environment-friendly anti-crack premixed concrete and a preparation method thereof. The recycled aggregate environment-friendly anti-cracking premixed concrete comprises the following components: cement, mineral powder, fine aggregate, coarse aggregate, sodium citrate, zeolite powder, a water reducing agent, steel fibers, a super-reinforcing agent and a coagulant retaining agent, wherein the super-reinforcing agent is a mixture of polyvinyl alcohol and a polycarboxylate water reducing agent. The super reinforcing agent can improve the strength of concrete. The preparation method comprises the following steps: uniformly mixing steel fibers, water, a water reducing agent, a coagulant keeping agent and a modifier by using a stirrer, and standing for 60 minutes; adding the modified cement, the fine aggregate and the coarse aggregate into a stirrer, and stirring at the speed of 80 r/min for 3 h; adjusting the rotating speed of the stirrer, and continuously stirring at 10 revolutions per minute; adding mineral powder and an expanding agent; the super reinforcing agent can improve the strength of concrete.
本发明公开了一种再生骨料环保抗裂预拌混凝土及其制备方法，所述再生骨料环保抗裂预拌混凝土混凝土包括有如下成分水泥、矿粉、细骨料、粗骨料、柠檬酸钠、沸石粉、减水剂、钢纤维、超增强剂、保凝剂所述超增强剂为聚乙烯醇与聚羧酸盐减水剂的混合物。所述超增强剂能够提高混凝土的强度。将钢纤维、水、减水剂、保凝剂、改性剂利用搅拌机混合均匀，放置60min；在搅拌机中，加入改性水泥、细骨料、粗骨料，以80转/min搅拌3h；调整搅拌机转速，以10转/min持续搅拌；加入矿粉、膨胀剂。所述超增强剂能够提高混凝土的强度。
Recycled aggregate environment-friendly anti-crack premixed concrete and preparation method thereof
一种再生骨料环保抗裂预拌混凝土及其制备方法
CHENG HAIXIANG (author) / CANG DINGLONG (author) / CAI LINHU (author) / KURASHIBA (author) / GU WEIQIAO (author) / ZHANG ZUHUA (author) / CANG DONGTING (author) / BIAN LIANYU (author)
2022-04-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Preparation method of recycled fine aggregate high-strength environment-friendly premixed concrete
| European Patent Office | 2022
High-flow-state environment-friendly anti-crack premixed concrete and preparation method thereof
| European Patent Office | 2021
Premixed recycled aggregate pervious concrete and preparation method thereof
| European Patent Office | 2024
Novel environment-friendly recycled aggregate pervious concrete and preparation method thereof
| European Patent Office | 2023
Environment-friendly recycled aggregate concrete and production process thereof
| European Patent Office | 2024