Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ternary cementitious system support mortar
The invention provides ternary cementitious system support mortar which comprises the following components in parts by weight: 20 to 60 parts of sulphoaluminate cement, 0 to 20 parts of ordinary portland cement, 0 to 10 parts of gypsum, 1 to 12 parts of microbead powder, 20 to 55 parts of quartz sand, 0.1 to 0.5 part of a water reducing agent, 0.01 to 0.5 part of a retarder, 0.01 to 0.2 part of anearly strength agent, 0.01 to 0.05 part of an expanding agent, 0.01 to 2 parts of rubber powder, and 0.01 to 0.2 part of an antifoaming agent. According to the invention, the sulphoaluminate cement,the ordinary portland cement and the gypsum are used as a ternary gelling system; additives such as the microbead powder, the water reducing agent, the retarder, the early strength agent, the expanding agent, rubber powder and the defoaming agent are added into the ternary gelling system, so that the support mortar material can meet the performance requirements of 'pot bearings for railway bridges', and particularly, after the microbead powder is added and has a synergistic effect, the prepared support mortar has good properties of segregation resistance, high early strength, high flow state and the like.
本发明提供一种三元胶凝体系支座砂浆，包括以下组分，以重量份计：硫铝水泥20～60份；普硅水泥0～20份；石膏0～10份；微珠粉1～12份；石英砂20～55份；减水剂0.1～0.5份；缓凝剂0.01～0.5份；早强剂0.01～0.2份；膨胀剂0.01～0.05份；胶粉0.01～2份；消泡剂0.01～0.2份。本发明通过将硫铝水泥、普硅水泥和石膏作为三元胶凝体系，并在三元胶凝体系中增设微珠粉、减水剂、缓凝剂、早强剂、膨胀剂、胶粉和消泡剂等外加剂，从而使得支座砂浆材料能够满足《铁路桥梁盆式支座》中的性能要求，尤其是加入微珠粉，协同作用后，使其制得的支座砂浆具有抗离析、高早强和高流态等良好性能。
Ternary cementitious system support mortar
The invention provides ternary cementitious system support mortar which comprises the following components in parts by weight: 20 to 60 parts of sulphoaluminate cement, 0 to 20 parts of ordinary portland cement, 0 to 10 parts of gypsum, 1 to 12 parts of microbead powder, 20 to 55 parts of quartz sand, 0.1 to 0.5 part of a water reducing agent, 0.01 to 0.5 part of a retarder, 0.01 to 0.2 part of anearly strength agent, 0.01 to 0.05 part of an expanding agent, 0.01 to 2 parts of rubber powder, and 0.01 to 0.2 part of an antifoaming agent. According to the invention, the sulphoaluminate cement,the ordinary portland cement and the gypsum are used as a ternary gelling system; additives such as the microbead powder, the water reducing agent, the retarder, the early strength agent, the expanding agent, rubber powder and the defoaming agent are added into the ternary gelling system, so that the support mortar material can meet the performance requirements of 'pot bearings for railway bridges', and particularly, after the microbead powder is added and has a synergistic effect, the prepared support mortar has good properties of segregation resistance, high early strength, high flow state and the like.
本发明提供一种三元胶凝体系支座砂浆，包括以下组分，以重量份计：硫铝水泥20～60份；普硅水泥0～20份；石膏0～10份；微珠粉1～12份；石英砂20～55份；减水剂0.1～0.5份；缓凝剂0.01～0.5份；早强剂0.01～0.2份；膨胀剂0.01～0.05份；胶粉0.01～2份；消泡剂0.01～0.2份。本发明通过将硫铝水泥、普硅水泥和石膏作为三元胶凝体系，并在三元胶凝体系中增设微珠粉、减水剂、缓凝剂、早强剂、膨胀剂、胶粉和消泡剂等外加剂，从而使得支座砂浆材料能够满足《铁路桥梁盆式支座》中的性能要求，尤其是加入微珠粉，协同作用后，使其制得的支座砂浆具有抗离析、高早强和高流态等良好性能。
Ternary cementitious system support mortar
一种三元胶凝体系支座砂浆
GU CHAOJIAN (Autor:in) / LI XUANFU (Autor:in) / ZHANG BIJUN (Autor:in)
29.05.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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Optimization of ternary cementitious mortar blends using factorial experimental plans
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