Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Slow-release plastic expanding agent for cement-based binding material and preparation method of slow-release plastic expanding agent
The invention provides a slow-release plastic expanding agent for a cement-based binding material and a preparation method of the slow-release plastic expanding agent and particularly relates to a plastic expanding agent capable of continuously generating certain expansion to compensate for early shrinkage of the cement-based binding material before the stage that a cement-based binding material mixture loses plasticity. The slow-release plastic expanding agent for the cement-based binding material is prepared from, by weight, 30-50 parts of aliphatic azo compounds, 20-40 parts of N-nitro compounds, 5-20 parts of foaming promoter and 5-15 parts of foam stabilizer. When the slow-release plastic expanding agent, polycarboxylate water reducing agent, a naphthalene water reducing agent and an aliphatic water reducing agent are compounded for use, the viscosity of the cement-based binding material mixture is slightly increased, the workability of the mixture is improved, micro-expansion is generated, and early shrinkage of the cement-based binding material mixture can be offset to a certain degree.
Slow-release plastic expanding agent for cement-based binding material and preparation method of slow-release plastic expanding agent
The invention provides a slow-release plastic expanding agent for a cement-based binding material and a preparation method of the slow-release plastic expanding agent and particularly relates to a plastic expanding agent capable of continuously generating certain expansion to compensate for early shrinkage of the cement-based binding material before the stage that a cement-based binding material mixture loses plasticity. The slow-release plastic expanding agent for the cement-based binding material is prepared from, by weight, 30-50 parts of aliphatic azo compounds, 20-40 parts of N-nitro compounds, 5-20 parts of foaming promoter and 5-15 parts of foam stabilizer. When the slow-release plastic expanding agent, polycarboxylate water reducing agent, a naphthalene water reducing agent and an aliphatic water reducing agent are compounded for use, the viscosity of the cement-based binding material mixture is slightly increased, the workability of the mixture is improved, micro-expansion is generated, and early shrinkage of the cement-based binding material mixture can be offset to a certain degree.
Slow-release plastic expanding agent for cement-based binding material and preparation method of slow-release plastic expanding agent
KE KAI (Autor:in) / JIANG BO (Autor:in) / HE XINGYANG (Autor:in) / SU YING (Autor:in) / CHANG YING (Autor:in) / SUN YIHENG (Autor:in) / DAI FEI (Autor:in)
27.01.2016
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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