Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Phosphorus slag compound modifying agent
The invention provides a phosphorus slag compound modifying agent, and belongs to the field of comprehensive utilization of solid waste. The invention provides the phosphorus slag compound modifying agent which takes straw pulp alkaline paper making black liquor and coal ash as main components, is used for modifying phosphorus slag and is low in cost. In the modifying agent, acetylene sludge and the black liquor form a strong basic excitation environment, so that delayed coagulation caused by P2O5 is favorably inhibited. The active SiO2 in the coal ash provides a nucleating point for hydration of cement clinker, and meanwhile, effective water cement ratio is improved, hydration speed of the cement clinker is further improved, and the improvement of early strength is promoted. The low-temperature delayed coagulation phenomenon of modified phosphorus slag micro powder is effectively inhibited, and meanwhile, the mixing ratio of the phosphorus slag in concrete, and the early strength, anti-permeability and anti-frost property of a corresponding concrete product can be obviously improved.
Phosphorus slag compound modifying agent
The invention provides a phosphorus slag compound modifying agent, and belongs to the field of comprehensive utilization of solid waste. The invention provides the phosphorus slag compound modifying agent which takes straw pulp alkaline paper making black liquor and coal ash as main components, is used for modifying phosphorus slag and is low in cost. In the modifying agent, acetylene sludge and the black liquor form a strong basic excitation environment, so that delayed coagulation caused by P2O5 is favorably inhibited. The active SiO2 in the coal ash provides a nucleating point for hydration of cement clinker, and meanwhile, effective water cement ratio is improved, hydration speed of the cement clinker is further improved, and the improvement of early strength is promoted. The low-temperature delayed coagulation phenomenon of modified phosphorus slag micro powder is effectively inhibited, and meanwhile, the mixing ratio of the phosphorus slag in concrete, and the early strength, anti-permeability and anti-frost property of a corresponding concrete product can be obviously improved.
Phosphorus slag compound modifying agent
YU HAIYUN (Autor:in) / ZHANG LIANGGUI (Autor:in) / QU ZHAOFEI (Autor:in)
03.02.2016
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
Preparation method of phosphorus slag compound modifier
| Europäisches Patentamt | 2016