A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-volume waste sand wall post-grouting material and grouting method
The invention discloses a high-volume waste sand wall post-grouting material and a grouting method, and relates to the technical field of grouting materials, the high-volume waste sand wall post-grouting material comprises the following raw materials in parts by mass: 70-80% of silty soil sand replacing commercial sand; the concrete is prepared from the following components in parts by weight: 220 to 330 parts of commercial sand, 770 to 880 parts of silty soil sand, 0 to 260 parts of cement, 0 to 52 parts of triisopropanolamine, 190 parts of fly ash and 510 parts of water. According to the invention, the triisopropanolamine is added to replace cement in proportion to prepare the wall post-grouting, so that the utilization rate of the waste silty soil and sand is improved, the fluidity and consistency of the slurry are improved, the later strength of the slurry is improved, the setting time of the waste silty soil and sand wall post-grouting slurry is shortened, the bleeding rate is reduced, and the construction cost is reduced under the condition that the good fluidity of the slurry is ensured. Ingredients are simple, cost is low, and comprehensive performance is good; meanwhile, the problem that the later strength of the slurry is insufficient can be effectively solved, the cement use amount of the slurry can be reduced through the triisopropanolamine, the cement use amount is reduced, the safety of shield construction is guaranteed, and meanwhile the green and economic purposes are achieved.
本发明公开了一种高掺量废弃砂壁后注浆材料及注浆方法，涉及注浆材料技术领域，包括如下质量份数的原料配方：粉质土砂替换商品砂的比例70%‑80%；商品砂220‑330份，粉质土砂770‑880份，水泥0‑260份，三异丙醇胺0‑52份，粉煤灰190份，水510份。本发明通过添加三异丙醇胺按比例替换水泥配制壁后注浆，提高废弃粉质土砂的利用率，在保证浆液流动性良好的条件下，不仅提高了浆液的流动度与稠度，提高了浆液后期强度，同时缩短了废弃泥砂壁后注浆浆液凝结时间，降低了泌水率，配料简单、成本低廉、综合性能佳；同时本发明还能够有效解决浆液的后期强度不足的问题，并且三异丙醇胺可以减少浆液的水泥用量，减少了水泥用量，保证盾构施工的安全性的同时完成了绿色与经济的目标。
High-volume waste sand wall post-grouting material and grouting method
The invention discloses a high-volume waste sand wall post-grouting material and a grouting method, and relates to the technical field of grouting materials, the high-volume waste sand wall post-grouting material comprises the following raw materials in parts by mass: 70-80% of silty soil sand replacing commercial sand; the concrete is prepared from the following components in parts by weight: 220 to 330 parts of commercial sand, 770 to 880 parts of silty soil sand, 0 to 260 parts of cement, 0 to 52 parts of triisopropanolamine, 190 parts of fly ash and 510 parts of water. According to the invention, the triisopropanolamine is added to replace cement in proportion to prepare the wall post-grouting, so that the utilization rate of the waste silty soil and sand is improved, the fluidity and consistency of the slurry are improved, the later strength of the slurry is improved, the setting time of the waste silty soil and sand wall post-grouting slurry is shortened, the bleeding rate is reduced, and the construction cost is reduced under the condition that the good fluidity of the slurry is ensured. Ingredients are simple, cost is low, and comprehensive performance is good; meanwhile, the problem that the later strength of the slurry is insufficient can be effectively solved, the cement use amount of the slurry can be reduced through the triisopropanolamine, the cement use amount is reduced, the safety of shield construction is guaranteed, and meanwhile the green and economic purposes are achieved.
本发明公开了一种高掺量废弃砂壁后注浆材料及注浆方法，涉及注浆材料技术领域，包括如下质量份数的原料配方：粉质土砂替换商品砂的比例70%‑80%；商品砂220‑330份，粉质土砂770‑880份，水泥0‑260份，三异丙醇胺0‑52份，粉煤灰190份，水510份。本发明通过添加三异丙醇胺按比例替换水泥配制壁后注浆，提高废弃粉质土砂的利用率，在保证浆液流动性良好的条件下，不仅提高了浆液的流动度与稠度，提高了浆液后期强度，同时缩短了废弃泥砂壁后注浆浆液凝结时间，降低了泌水率，配料简单、成本低廉、综合性能佳；同时本发明还能够有效解决浆液的后期强度不足的问题，并且三异丙醇胺可以减少浆液的水泥用量，减少了水泥用量，保证盾构施工的安全性的同时完成了绿色与经济的目标。
High-volume waste sand wall post-grouting material and grouting method
一种高掺量废弃砂壁后注浆材料及注浆方法
ZHANG CHIYU (author) / ZHANG JIANFENG (author) / JIANG SU (author) / MIN FANLU (author)
2022-12-30
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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