Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-strength ceramsite for concrete and preparation method thereof
The invention relates to high-strength ceramsite for concrete and a preparation method thereof, and belongs to the technical field of building materials. According to the ceramsite, solid wastes such as fly ash, oyster ash, desert sand and furnace slag are used as raw materials, the cost is low, the cylinder compressive strength is 3.89-4.17 MPa, and the ceramsite has relatively high strength; the diatomite powder is introduced into the core part of the ceramsite to form holes, the ceramsite in a dry state has good water absorption, in the curing process, the water retention and water release characteristics of the ceramsite enable the periphery of the ceramsite to be in a wet state, and the contact part of the ceramsite and concrete is fully hydrated, so that the ceramsite has a very good reinforcing effect; a regulator is added when the bottom mud and the diatomite powder are mixed, siloxane is introduced to polyethylene glycol monoallyl ether molecules by KH560 ring opening, and then copolymerization with acrylic acid is performed, so that a side chain of an obtained copolymer contains a large amount of siloxane and carboxyl, the mixing workability of the dry diatomite powder and the bottom mud is improved, the uniform mixing of the diatomite powder is ensured, and the stirring speed of the bottom mud and the diatomite powder is improved. And drying to form uniform pores.
本发明涉及一种混凝土用高强度陶粒及其制备方法，属于建筑材料技术领域。该陶粒以粉煤灰、蛎灰、沙漠砂、炉渣等固废物为原材料，成本低廉，筒压强度为3.89‑4.17MPa，具有较高的强度；陶粒的芯部通过引入硅藻土粉成孔，干态下的陶粒具有良好的吸水性，在养护过程中，陶粒的保水和释水特性使得陶粒周边处于湿润状态，陶粒与混凝土接触处充分水化，使得陶粒起到很好的强化效果，在拌合底泥和硅藻土粉时添加一种调节剂，由KH560开环向聚乙二醇单烯丙基醚分子上引入硅氧烷，之后与丙烯酸共聚，得到的共聚物的侧链上含有大量的硅氧烷和羧基，改善干态硅藻土粉和底泥拌合的和易性，保证硅藻土粉均匀混合，干燥后形成均匀的孔隙。
High-strength ceramsite for concrete and preparation method thereof
The invention relates to high-strength ceramsite for concrete and a preparation method thereof, and belongs to the technical field of building materials. According to the ceramsite, solid wastes such as fly ash, oyster ash, desert sand and furnace slag are used as raw materials, the cost is low, the cylinder compressive strength is 3.89-4.17 MPa, and the ceramsite has relatively high strength; the diatomite powder is introduced into the core part of the ceramsite to form holes, the ceramsite in a dry state has good water absorption, in the curing process, the water retention and water release characteristics of the ceramsite enable the periphery of the ceramsite to be in a wet state, and the contact part of the ceramsite and concrete is fully hydrated, so that the ceramsite has a very good reinforcing effect; a regulator is added when the bottom mud and the diatomite powder are mixed, siloxane is introduced to polyethylene glycol monoallyl ether molecules by KH560 ring opening, and then copolymerization with acrylic acid is performed, so that a side chain of an obtained copolymer contains a large amount of siloxane and carboxyl, the mixing workability of the dry diatomite powder and the bottom mud is improved, the uniform mixing of the diatomite powder is ensured, and the stirring speed of the bottom mud and the diatomite powder is improved. And drying to form uniform pores.
本发明涉及一种混凝土用高强度陶粒及其制备方法，属于建筑材料技术领域。该陶粒以粉煤灰、蛎灰、沙漠砂、炉渣等固废物为原材料，成本低廉，筒压强度为3.89‑4.17MPa，具有较高的强度；陶粒的芯部通过引入硅藻土粉成孔，干态下的陶粒具有良好的吸水性，在养护过程中，陶粒的保水和释水特性使得陶粒周边处于湿润状态，陶粒与混凝土接触处充分水化，使得陶粒起到很好的强化效果，在拌合底泥和硅藻土粉时添加一种调节剂，由KH560开环向聚乙二醇单烯丙基醚分子上引入硅氧烷，之后与丙烯酸共聚，得到的共聚物的侧链上含有大量的硅氧烷和羧基，改善干态硅藻土粉和底泥拌合的和易性，保证硅藻土粉均匀混合，干燥后形成均匀的孔隙。
High-strength ceramsite for concrete and preparation method thereof
一种混凝土用高强度陶粒及其制备方法
ZHANG CUIHUA (Autor:in)
25.11.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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