A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Graphene oxide modified recycled concrete and preparation method thereof
The invention discloses graphene oxide modified recycled concrete and a preparation method thereof. The graphene oxide modified recycled concrete is prepared from 200 to 230 parts of Portland cement, 1100 to 1250 parts of recycled aggregate, 20 to 35 parts of graphene oxide, 10 to 20 parts of vinyltriethoxysilane, 3 to 5 parts of hydrogen peroxide, 0.2 to 0.5 part of sodium hydroxide, 1.5 to 4.5 parts of graphene oxide modified polycarboxylate superplasticizer and 150 to 180 parts of water. The method for preparing the graphene oxide modified recycled concrete comprises the following steps: a, pouring 0.5-1.5 parts of graphene oxide modified polycarboxylic acid water reducer, 3-5 parts of hydrogen peroxide, 0.2-0.5 part of sodium hydroxide and 50-100 parts of water into a stirrer, uniformly mixing, adding 1100-1250 parts of recycled aggregate, and stirring for 15-30 seconds; b, uniformly stirring 20-35 parts of graphene oxide, 10-20 parts of vinyltriethoxysilane and 50-75 parts of water, adding into a stirrer, stirring for 15-30 seconds, then adding 200-230 parts of Portland cement, and stirring for 30-50 seconds; and c, uniformly stirring 1-3 parts of the graphene oxide modified polycarboxylate superplasticizer and 50-80 parts of water, adding the mixture into the stirrer, and stirring for 60-120 seconds.
本发明公开了一种氧化石墨烯改性再生混凝土及其制备方法，包括200‑230份硅酸盐水泥、1100‑1250份再生骨料、20‑35份氧化石墨烯、10‑20份乙烯基三乙氧基硅烷、3‑5份双氧水、0.2‑0.5份氢氧化钠、1.5‑4.5份氧化石墨烯改性聚羧酸减水剂和150‑180份水。其中的制备本发明的氧化石墨烯改性再生混凝土的方法包括：包括以下步骤：a、将0.5‑1.5份氧化石墨烯改性聚羧酸减水剂、3‑5份双氧水、0.2‑0.5份氢氧化钠和50‑100份水倒入搅拌机混匀，再加入1100‑1250份再生骨料搅拌15‑30秒；b、将20‑35份氧化石墨烯、10‑20份乙烯基三乙氧基硅烷和50‑75份水搅拌均匀加入搅拌机后搅拌15‑30秒，再加入200‑230份硅酸盐水泥搅拌30‑50秒；c、将1‑3份氧化石墨烯改性聚羧酸减水剂和50‑80份水搅拌均匀后加入搅拌机，再搅拌60‑120秒。
Graphene oxide modified recycled concrete and preparation method thereof
The invention discloses graphene oxide modified recycled concrete and a preparation method thereof. The graphene oxide modified recycled concrete is prepared from 200 to 230 parts of Portland cement, 1100 to 1250 parts of recycled aggregate, 20 to 35 parts of graphene oxide, 10 to 20 parts of vinyltriethoxysilane, 3 to 5 parts of hydrogen peroxide, 0.2 to 0.5 part of sodium hydroxide, 1.5 to 4.5 parts of graphene oxide modified polycarboxylate superplasticizer and 150 to 180 parts of water. The method for preparing the graphene oxide modified recycled concrete comprises the following steps: a, pouring 0.5-1.5 parts of graphene oxide modified polycarboxylic acid water reducer, 3-5 parts of hydrogen peroxide, 0.2-0.5 part of sodium hydroxide and 50-100 parts of water into a stirrer, uniformly mixing, adding 1100-1250 parts of recycled aggregate, and stirring for 15-30 seconds; b, uniformly stirring 20-35 parts of graphene oxide, 10-20 parts of vinyltriethoxysilane and 50-75 parts of water, adding into a stirrer, stirring for 15-30 seconds, then adding 200-230 parts of Portland cement, and stirring for 30-50 seconds; and c, uniformly stirring 1-3 parts of the graphene oxide modified polycarboxylate superplasticizer and 50-80 parts of water, adding the mixture into the stirrer, and stirring for 60-120 seconds.
本发明公开了一种氧化石墨烯改性再生混凝土及其制备方法，包括200‑230份硅酸盐水泥、1100‑1250份再生骨料、20‑35份氧化石墨烯、10‑20份乙烯基三乙氧基硅烷、3‑5份双氧水、0.2‑0.5份氢氧化钠、1.5‑4.5份氧化石墨烯改性聚羧酸减水剂和150‑180份水。其中的制备本发明的氧化石墨烯改性再生混凝土的方法包括：包括以下步骤：a、将0.5‑1.5份氧化石墨烯改性聚羧酸减水剂、3‑5份双氧水、0.2‑0.5份氢氧化钠和50‑100份水倒入搅拌机混匀，再加入1100‑1250份再生骨料搅拌15‑30秒；b、将20‑35份氧化石墨烯、10‑20份乙烯基三乙氧基硅烷和50‑75份水搅拌均匀加入搅拌机后搅拌15‑30秒，再加入200‑230份硅酸盐水泥搅拌30‑50秒；c、将1‑3份氧化石墨烯改性聚羧酸减水剂和50‑80份水搅拌均匀后加入搅拌机，再搅拌60‑120秒。
Graphene oxide modified recycled concrete and preparation method thereof
一种氧化石墨烯改性再生混凝土及其制备方法
LIU YU (author) / BAO NINGZHONG (author) / LI DONGXU (author) / WANG KAI (author) / LIU MINGLE (author) / GONG XIBAO (author)
2021-12-31
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Modified recycled bare concrete and preparation method thereof
| European Patent Office | 2023
| European Patent Office | 2023
Polyacrylate modified recycled concrete and preparation method thereof
| European Patent Office | 2023
Graphene oxide modified cement concrete and preparation method thereof
| European Patent Office | 2021
Modified concrete recycled fine aggregate and preparation method thereof
| European Patent Office | 2024