Optimization of preparation materials and performance measurement prefabricated lightweight concrete wall panels
In order to solve the problem that traditional prefabricated ceramsite lightweight concrete is prone to cracking during use,a new type of prefabricated lightweight wall panel was prepared.The ratio of lightweight con-crete was optimized,the lightweight wallboard was made from the optimized lightweight concrete,and the perfor-mance and practical application effect of the lightweight wallboard were analyzed.The experimental results showed that when the type of foaming agent was dodecyl sulfonate foaming agent,the foaming agent content was 10%,and the polypropylene fiber content was 0.2%,the compressive strength of the prepared lightweight concrete was 12.5 MPa at 28 days,a softening coefficient was 0.94,a dry shrinkage value was 0.377 mm/m and the slump ex-pansion degree was 508 mm at 90 days,meeting the requirements for the production of lightweight wall panels.The lightweight wall panels made from this concrete meet the requirements of JC/T 2214-2014"Reinforced Ceramsite Concrete Prefabricated Lightweight Wall Panels"standard in all aspects of performance.
万方数据
维普
