核心参数
测试类型: 安定性
产地类别: 进口
砂浆层尺寸变化监测仪
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Curling, warping, shrinkage and cracking are the most common effects during the process of drying screeds made of Portland cement and aggregates. The drying process taking place from the top surface, the upper surfaces usually shrink first, resulting in a tendency for the screeds to curl upwards at the edges.
In order to characterize these phenomena, CAD Instruments developed, in collaboration with the Louis Vicat Technical Centre in L'Isle d'Abeau and based on original research made at LGCIE*, a special device 砂浆层尺寸变化监测仪 to follow the curling, shrinking and drying process on reduced size mortar slab.
A 30 x 30 x 3 cm mold is used to cast a mortar screed. A balance is used to measure continuously the mass loss. 24 hours after casting, the slab is equipped with:
4 vertical positioning sensors placed at the corners to measure the curling
2 horizontal positioning sensors to control the shrinkage
A special software is used to store the mass loss and various sensors positions versus time. Direct export of data to Excel can be used for advanced treatment or modeling.
* Georgin, J.F.; Ambroise, J.; Péra, J.; Reynouard, J.M. Development of self-leveling screed based on calcium sulfoaluminate cement: Modelling of curling due to drying. Cement and Concrete Composites (2008), 30 (9), 769-778.
企业名称
北京伯英科技有限公司
企业信息已认证
企业类型
信用代码
110106021833280
成立日期
2016-08-09
注册资本
100
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北京伯英科技有限公司
公司地址
北京市朝阳区双营路美立方3号楼2-307-2
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