通俗溷凝土小型空心砌块临盆工艺流程图及仿单(国外英文资料).docVIP

普通溷凝土小型空心砌块生产工艺流程图及说明书(国外英文资料) General concrete small hollow block production process flowchart and specification One, process flow chart The cement mix and the water of various admixtures Measurement of metering Feed hopper Stir stir Molding machine molding Preconditioning (steam curing) Send plate Take off the board The natural curing Final inspection of finished product Second, description, 1. The raw material to prepare Ordinary concrete small hollow block mainly use raw materials including: cement, fine aggregate and coarse aggregate, admixture and water, etc., they should conform to the requirements of the relevant standards, respectively. (1) cement Cement used conform to the standard of GB/T175 Portland cement and ordinary Portland cement, in accordance with GB/T1344 slag Portland cement, pozzolana Portland cement and fly ash Portland cement, in accordance with GB12958 composite Portland cement. Proper use of bulk cement. (2) the aggregate The fine aggregate is usually used in sand, stone, etc., which shall conform to the standard GB/T14684 construction sand. Coarse aggregate can be used with gravel, pebbles and heavy slag, its maximum size is 10mm. Gravel and pebbles should meet the requirements of GB/T14685 the construction pebble and gravel, and the heavy slag shall conform to the requirements of YBJ20584 the technical conditions of the ballast gravel in the concrete blast furnace. If the stone material such as stone is used, less than 0.15 mm of fine stone powder should not be greater than 10%. (3) additive It is possible to improve the workability of concrete mixture, improve the strength of block and improve the anti-permeability of block. The admixtures shall conform to the provisions of gb8076-1997 concrete admixtures. Measure and match design The mixing ratio of concrete is the fundamental factor determining the strength grade of the block, especially the cement and aggregate grading. After the test match, the ratio of each strength grade, the meas