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Grouting material, prefabricated lightweight aggregate concrete and preparation method of prefabricated lightweight aggregate concrete
The invention discloses a grouting material, prefabricated lightweight aggregate concrete and a preparation method thereof. The grouting material is prepared from the following raw materials in parts by weight: 210 to 240 parts of basic magnesium sulfate cement, 75 to 95 parts of silica fume, 20 to 35 parts of glass beads, 50 to 70 parts of fly ash, 150 to 180 parts of light pottery sand, 50 to 70 parts of water and 10 to 20 parts of a water reducing agent. According to the invention, the polymer emulsion modified gravel type shale lightweight aggregate is used as a lock-embedded framework, and the density is reduced; basic magnesium sulfate cement is used for replacing ordinary Portland cement to be prepared into the grouting material, whisker-shaped hydration products 5. 1. 7 of the basic magnesium sulfate cement are further interlocked with the porous light coarse aggregate, meanwhile, the porous light coarse aggregate releases polymer emulsion to toughen the surrounding structure of the aggregate, and the breaking strength and toughness of concrete are synergistically improved. The prepared lightweight high-strength high-toughness concrete has the advantages of being low in self weight, high in breaking strength, good in toughness and the like.
本发明公开一种灌浆料、预制轻骨料混凝土及其制备方法。该灌浆料，按重量份计，其原料包括：碱式硫酸镁水泥210‑240份、硅灰75‑95份、玻璃微珠20‑35份、粉煤灰50‑70份、轻质陶砂150‑180份、水50‑70份、减水剂10‑20份。本发明以聚合物乳液改性的碎石型页岩轻骨料为嵌锁骨架，并降低密度；以碱式硫酸镁水泥替代普通硅酸盐水泥制成灌浆料，利用碱式硫酸镁水泥晶须状水化产物5·1·7相与多孔轻粗骨料进一步嵌锁，同时多孔轻粗骨料释放聚合物乳液韧化骨料周围结构，协同提升混凝土的抗折强度及韧性。本发明制备的轻质高强高韧混凝土，具有自重低、抗折强度高、韧性好等优点。
Grouting material, prefabricated lightweight aggregate concrete and preparation method of prefabricated lightweight aggregate concrete
The invention discloses a grouting material, prefabricated lightweight aggregate concrete and a preparation method thereof. The grouting material is prepared from the following raw materials in parts by weight: 210 to 240 parts of basic magnesium sulfate cement, 75 to 95 parts of silica fume, 20 to 35 parts of glass beads, 50 to 70 parts of fly ash, 150 to 180 parts of light pottery sand, 50 to 70 parts of water and 10 to 20 parts of a water reducing agent. According to the invention, the polymer emulsion modified gravel type shale lightweight aggregate is used as a lock-embedded framework, and the density is reduced; basic magnesium sulfate cement is used for replacing ordinary Portland cement to be prepared into the grouting material, whisker-shaped hydration products 5. 1. 7 of the basic magnesium sulfate cement are further interlocked with the porous light coarse aggregate, meanwhile, the porous light coarse aggregate releases polymer emulsion to toughen the surrounding structure of the aggregate, and the breaking strength and toughness of concrete are synergistically improved. The prepared lightweight high-strength high-toughness concrete has the advantages of being low in self weight, high in breaking strength, good in toughness and the like.
本发明公开一种灌浆料、预制轻骨料混凝土及其制备方法。该灌浆料，按重量份计，其原料包括：碱式硫酸镁水泥210‑240份、硅灰75‑95份、玻璃微珠20‑35份、粉煤灰50‑70份、轻质陶砂150‑180份、水50‑70份、减水剂10‑20份。本发明以聚合物乳液改性的碎石型页岩轻骨料为嵌锁骨架，并降低密度；以碱式硫酸镁水泥替代普通硅酸盐水泥制成灌浆料，利用碱式硫酸镁水泥晶须状水化产物5·1·7相与多孔轻粗骨料进一步嵌锁，同时多孔轻粗骨料释放聚合物乳液韧化骨料周围结构，协同提升混凝土的抗折强度及韧性。本发明制备的轻质高强高韧混凝土，具有自重低、抗折强度高、韧性好等优点。
Grouting material, prefabricated lightweight aggregate concrete and preparation method of prefabricated lightweight aggregate concrete
一种灌浆料、预制轻骨料混凝土及其制备方法
LIU YUNPENG (author) / PENG BO (author) / XU ZONGWANG (author) / WANG FAZHOU (author) / CHOU JINENG (author)
2023-10-17
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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