Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-shrinkage cement-based grouting material based on water purification sludge and preparation method of low-shrinkage cement-based grouting material
The invention belongs to the technical field of water purification sludge treatment, and discloses a low-shrinkage cement-based grouting material based on water purification sludge and a preparation method thereof.The grouting material is prepared from, by mass, 67 parts of water purification sludge, 13-16 parts of Portland cement, 16 parts of quartz sand, 0.02-0.04 part of flocculant breaking agent, 0.1-0.3 part of coagulant and 0.2-0.5 part of water reducing agent; each part of the flocculant breaking agent contains 0.01 part of sodium tripolyphosphate and 0.03 part of sodium citrate. The preparation method comprises the following steps: uniformly mixing the water purification sludge with the flocculant breaking agent; then adding Portland cement and quartz sand, and uniformly mixing to obtain mixed slurry; and adding a water reducing agent and a coagulant into the mixed slurry, and uniformly mixing to obtain the low-shrinkage cement-based grouting material based on the water purification sludge. A cellular structure in the PCA water purification sludge can be opened to release free water to be mixed with cement to obtain the backfill grouting material with high flow state and good coagulation performance, and the backfill grouting material is simple in preparation method, wide in material source, low in cost, free of toxic and harmful effects and wide in practicability.
本发明属于净水污泥处理技术领域，公开了一种基于净水污泥的低收缩水泥基注浆材料及其制备方法，以质量份数计，该注浆材料原料包括：净水污泥67份，硅酸盐水泥13～16份，石英砂16份，破絮剂0.02～0.04份，促凝剂0.1～0.3份，减水剂0.2～0.5份；每份破絮剂中含有0.01份的三聚磷酸钠和0.03份的柠檬酸钠。制备时，将净水污泥与破絮剂混匀；然后加入硅酸盐水泥和石英砂混匀，得到混合浆体；再向混合浆体中加入减水剂和促凝剂，混匀得到所述基于净水污泥的低收缩水泥基注浆材料。本发明能够将PCA净水污泥中的胞状结构打开释放自由水与水泥混合后得到高流态且具有良好凝结性能的回填注浆材料，制备方法简单、材料来源广、成本低、无毒害作用，具有广泛的实用性。
Low-shrinkage cement-based grouting material based on water purification sludge and preparation method of low-shrinkage cement-based grouting material
The invention belongs to the technical field of water purification sludge treatment, and discloses a low-shrinkage cement-based grouting material based on water purification sludge and a preparation method thereof.The grouting material is prepared from, by mass, 67 parts of water purification sludge, 13-16 parts of Portland cement, 16 parts of quartz sand, 0.02-0.04 part of flocculant breaking agent, 0.1-0.3 part of coagulant and 0.2-0.5 part of water reducing agent; each part of the flocculant breaking agent contains 0.01 part of sodium tripolyphosphate and 0.03 part of sodium citrate. The preparation method comprises the following steps: uniformly mixing the water purification sludge with the flocculant breaking agent; then adding Portland cement and quartz sand, and uniformly mixing to obtain mixed slurry; and adding a water reducing agent and a coagulant into the mixed slurry, and uniformly mixing to obtain the low-shrinkage cement-based grouting material based on the water purification sludge. A cellular structure in the PCA water purification sludge can be opened to release free water to be mixed with cement to obtain the backfill grouting material with high flow state and good coagulation performance, and the backfill grouting material is simple in preparation method, wide in material source, low in cost, free of toxic and harmful effects and wide in practicability.
本发明属于净水污泥处理技术领域，公开了一种基于净水污泥的低收缩水泥基注浆材料及其制备方法，以质量份数计，该注浆材料原料包括：净水污泥67份，硅酸盐水泥13～16份，石英砂16份，破絮剂0.02～0.04份，促凝剂0.1～0.3份，减水剂0.2～0.5份；每份破絮剂中含有0.01份的三聚磷酸钠和0.03份的柠檬酸钠。制备时，将净水污泥与破絮剂混匀；然后加入硅酸盐水泥和石英砂混匀，得到混合浆体；再向混合浆体中加入减水剂和促凝剂，混匀得到所述基于净水污泥的低收缩水泥基注浆材料。本发明能够将PCA净水污泥中的胞状结构打开释放自由水与水泥混合后得到高流态且具有良好凝结性能的回填注浆材料，制备方法简单、材料来源广、成本低、无毒害作用，具有广泛的实用性。
Low-shrinkage cement-based grouting material based on water purification sludge and preparation method of low-shrinkage cement-based grouting material
一种基于净水污泥的低收缩水泥基注浆材料及其制备方法
LI GUOXIN (Autor:in) / WANG BIAO (Autor:in) / NIU MENGDIE (Autor:in)
01.11.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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