Masonry retaining wall Slope protection construction scheme
Content introduction 3.3.2 Construction quality requirements for concrete masonry (1) The block stone shall be fresh and hard, basically have two flat surfaces, clean and wet, and the side length of the block stone is 300~500mm. (2) The face stone shall be laid first, and then the belly stone. The joint distance between the stones shall be 80~100mm. The belly stone shall be large face down, and a small gap shall be formed between the stones to facilitate concrete pouring and vibration. The facing stone and the belly stone shall be arranged with small stones to connect, so as to avoid longitudinal straight joints between the facing stone and the belly stone. (3) The stones in the same layer shall be roughly leveled, and the height difference of adjacent stones shall not be too large, so as to facilitate the consolidation of the mortar of the upper and lower horizontal joints, and also to facilitate the staggered installation of headers and stones. The installation of single stone shall be stable, and the large surface shall be placed downward. (4) The concrete poured in the masonry joints must be vibrated and compacted so that each single stone can be bonded closely with each other. The poured concrete is required to be poured layer by layer, with the layer height of 300~500mm. The upper and lower layers of facing stones and belly stones shall be laid in staggered joints, without forming a straight joint. The outer surface shall be smooth and straight. 3.3.3 Quality control requirements for pointing convex joints on masonry surface to pointing joints on masonry surface: firmly bonded, compacted and trowelled, free of cracks and other defects. Horizontal and vertical, smooth junction, consistent depth and width, no missing seam. The color of mortar joint is consistent, and the stone surface is clean.