Technology Path and Development Trend of Nonsintered Bricks with Construction Spoil
The amount of domestic construction spoil emission is significant,but the resource utilization rate is low.One feasible and high value-added way to utilize construction spoil is to produce nonsintered bricks.Firstly,the classification and main disposal methods of construction spoil are introduced,and the bottlenecks such as low-carbon dewatering of construction spoil raw materials and the difficulty of determining the process parameters are pointed out.Then,the common production process of nonsintered bricks along with the influence of molding,curing and other processes on the performance of nonsintered bricks are introduced.Next,the type of cementitious material and mixing,moisture content,admixtures and other factors on the mechanical performance of nonsintered bricks are further analyzed,and the resource reuse and low-carbon advantages of nonsintered bricks are summarized.The defects such as smooth surface not easy to combine with mortar,low shear strength,large dry shrinkage deformation,etc.are also reviewed.Finally,the future direction of research on nonsintered bricks from the perspective of green building is put forward.
construction spoilnonsintered bricksresource utilizationgreen construction
万方数据
维普
