التحكم في غبار التكسير
(PDF) اختبارات الخرسانة وفقا للكود الامريكى معربه (1 ...
For the third layer: A. Heap concrete above the top of the mold. (Para. ) B. Rod the layer 25 times with the rounded end of the tamping rod, penetrating through the third layer and approximately 1 in. [25 mm] into the second layer. Uniformly distribute the strokes over the cross section of the layer....