Abstract: Based on the forming methods of ceramsite foam concrete, this paper studied the influences of the pretreatment method of ceramsite, the incorporation method of ceramsite and the adding method of mixing water on the work performance, dry and wet density, compressive strength, bottom grip performance and ceramite distribution of ceramsite foam concrete, and determined the optimal forming methods of ceramsite foam concrete. The results show that slurry expansion degree can be effectively improved by the saturated water pretreatment method of ceramsite and the method of adding mixing water twice. Different forming methods have little influence on the aggregate expansion degree of ceramsite foam concrete. The dry and wet density of ceramsite foam concrete is affected by the incorporation method of ceramsite and mixing water. The adding method of mixing water twice and wet mixing of ceramsite are beneficial to improve the compressive strength of ceramsite foam concrete. The pretreatment method of ceramsite determines the bottom grip performance, and the adding method of mixing water also affects the bottom grip performance.

Key words: ceramsite foam concrete, forming method, work performance, compressive strength, bottom grip performance