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A platform for research: civil engineering, architecture and urbanism
Modified calcium oxide expansion agent for cement concrete and preparation method of modified calcium oxide expansion agent
The invention provides a modified calcium oxide expansion agent for cement concrete and a preparation method of the modified calcium oxide expansion agent. The modified calcium oxide expansion agent for the cement concrete has the specific surface area of 100-600m<2>/kg and is prepared from a water-soluble macromolecular organic polymer and calcium oxide expansion clinker, wherein the surface of the calcium oxide expansion clinker is coated with the water-soluble macromolecular organic polymer, and the water-soluble macromolecular organic polymer accounts for 1-20% the total mass of the modified calcium oxide expansion agent for the cement concrete. According to the expansion agent for the cement concrete, provided by the invention, the invalid hydration of a plastic stage of the concrete is reduced, and the hardened expansion quantity is increased; the expansion agent can be applied to the crack resisting and seepage prevention of a concrete structure and is used for greatly improving the durability of the concrete structure.
Modified calcium oxide expansion agent for cement concrete and preparation method of modified calcium oxide expansion agent
The invention provides a modified calcium oxide expansion agent for cement concrete and a preparation method of the modified calcium oxide expansion agent. The modified calcium oxide expansion agent for the cement concrete has the specific surface area of 100-600m<2>/kg and is prepared from a water-soluble macromolecular organic polymer and calcium oxide expansion clinker, wherein the surface of the calcium oxide expansion clinker is coated with the water-soluble macromolecular organic polymer, and the water-soluble macromolecular organic polymer accounts for 1-20% the total mass of the modified calcium oxide expansion agent for the cement concrete. According to the expansion agent for the cement concrete, provided by the invention, the invalid hydration of a plastic stage of the concrete is reduced, and the hardened expansion quantity is increased; the expansion agent can be applied to the crack resisting and seepage prevention of a concrete structure and is used for greatly improving the durability of the concrete structure.
Modified calcium oxide expansion agent for cement concrete and preparation method of modified calcium oxide expansion agent
WANG RUI (author) / CHENG JUN (author) / LU ANQUN (author) / TIAN QIAN (author) / ZHANG SHOUZHI (author) / LI HUA (author) / ZHANG JIANLIANG (author)
2015-06-10
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2015
| European Patent Office | 2015
Modified calcium oxide expansion agent for cement concrete
| European Patent Office | 2015
Modified calcium oxide cement concrete expansion agent and preparation method thereof
| European Patent Office | 2015
Modified calcium oxide expansive agent used for cement concrete and preparation method thereof
| European Patent Office | 2015