A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Subway muck slurry modification method and low-carbon concrete based on modified subway muck slurry
The invention discloses a metro muck slurry modification method and low-carbon concrete based on modified metro muck slurry. The preparation method comprises the following steps: uniformly mixing metro muck slurry with micron silica gel, mixing the mixture with cationic polyacrylamide to obtain a mixture, adding an amino silane coupling agent, dilute sulphuric acid and microcrystalline cellulose, and adding sodium hydroxide to adjust the pH value to obtain modified metro muck slurry; and finally, stirring a mixture with the modified subway muck slurry, a modified slurry activity inducer and a water reducing agent, wherein the mixture is obtained by uniformly mixing and stirring cement, fly ash, coarse aggregate and fine aggregate. According to the low-carbon concrete disclosed by the invention, in-situ treatment of the muck slurry is realized by modifying the muck slurry, and soil is modified, so that the muck slurry can be used for replacing part of a cementing material, and resource utilization of the low-carbon concrete in concrete production is realized. According to the invention, the use of cement is reduced, the recycling and in-situ utilization of the muck slurry are realized, and the carbon emission is reduced.
本发明公开了一种地铁渣土泥浆改性方法及基于改性地铁渣土泥浆的低碳混凝土。本发明首先通过将地铁渣土泥浆与微米硅胶混合均匀后，与阳离子聚丙烯酰胺混合得到混合物，之后加入氨基硅烷偶联剂、稀硫酸及微晶纤维素，并加入氢氧化钠调整pH得到改性地铁渣土泥浆；最后由混合料与上述改性地铁渣土泥浆、改性泥浆活性诱导剂及减水剂搅拌后获得，所述混合料由水泥、粉煤灰、粗骨料、细骨料混合搅拌均匀得到。本发明所述低碳混凝土通过对渣土泥浆改性实现了渣土泥浆原位处理，通过对泥土改性处理，实现了其替代部分胶凝材料使用，实现了其在混凝土生产中资源化利用。本发明降低了水泥的使用，实现了渣土泥浆的资源化和原位利用，降低了碳排放。
Subway muck slurry modification method and low-carbon concrete based on modified subway muck slurry
The invention discloses a metro muck slurry modification method and low-carbon concrete based on modified metro muck slurry. The preparation method comprises the following steps: uniformly mixing metro muck slurry with micron silica gel, mixing the mixture with cationic polyacrylamide to obtain a mixture, adding an amino silane coupling agent, dilute sulphuric acid and microcrystalline cellulose, and adding sodium hydroxide to adjust the pH value to obtain modified metro muck slurry; and finally, stirring a mixture with the modified subway muck slurry, a modified slurry activity inducer and a water reducing agent, wherein the mixture is obtained by uniformly mixing and stirring cement, fly ash, coarse aggregate and fine aggregate. According to the low-carbon concrete disclosed by the invention, in-situ treatment of the muck slurry is realized by modifying the muck slurry, and soil is modified, so that the muck slurry can be used for replacing part of a cementing material, and resource utilization of the low-carbon concrete in concrete production is realized. According to the invention, the use of cement is reduced, the recycling and in-situ utilization of the muck slurry are realized, and the carbon emission is reduced.
本发明公开了一种地铁渣土泥浆改性方法及基于改性地铁渣土泥浆的低碳混凝土。本发明首先通过将地铁渣土泥浆与微米硅胶混合均匀后，与阳离子聚丙烯酰胺混合得到混合物，之后加入氨基硅烷偶联剂、稀硫酸及微晶纤维素，并加入氢氧化钠调整pH得到改性地铁渣土泥浆；最后由混合料与上述改性地铁渣土泥浆、改性泥浆活性诱导剂及减水剂搅拌后获得，所述混合料由水泥、粉煤灰、粗骨料、细骨料混合搅拌均匀得到。本发明所述低碳混凝土通过对渣土泥浆改性实现了渣土泥浆原位处理，通过对泥土改性处理，实现了其替代部分胶凝材料使用，实现了其在混凝土生产中资源化利用。本发明降低了水泥的使用，实现了渣土泥浆的资源化和原位利用，降低了碳排放。
Subway muck slurry modification method and low-carbon concrete based on modified subway muck slurry
一种地铁渣土泥浆改性方法及基于改性地铁渣土泥浆的低碳混凝土
HUANG SHOUHUI (author) / LIU JUN (author) / LIU HUI (author) / ZHOU RENJUN (author) / ZHANG NAN (author) / ZHANG GUOQUAN (author) / JIANG ZHAOHUI (author) / XU LEI (author) / FENG WEIFENG (author) / GAO GUIBO (author)
2024-01-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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