砖墙砌筑施工工艺（Masonry construction technology of brick wall）.docVIP

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砖墙砌筑施工工艺（Masonry construction technology of brick wall）.doc

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砖墙砌筑施工工艺（Masonry construction technology of brick wall）

砖墙砌筑施工工艺（Masonry construction technology of brick wall） I. the form and material requirements of brick masonry (I) group form; Common brick wall commonly used thickness has half brick, brick, brick half, two brick wait. Brick masonry with ordinary brick masonry wall, in accordance with its different forms of wall groups, often have the following: one, a small, three, a small, plum ding. (two) material requirements: 1. brick varieties, specifications, strength levels must comply with the design requirements. Specifications should be consistent, and have factory certificate, test report. Cement usually uses 32.5 slag Portland cement or ordinary Portland cement. Sand should be made of medium sand, 5mm pore size sieve, MB37.5 mortar, sand mud content of not more than 5%, does not contain grass roots and other debris. 2., choose HB thickening powder. HB thickening powder is a kind of highly effective additive, which has the advantages of air entraining, dispersing, cement particle, water retention, thickening and saving cement. It can completely replace lime or lime paste in mixed mortar, and its strength, consistency and water holding capacity are all improved obviously. Clean water with tap water or water out of 3. harmful impurities, other materials such as Rachel reinforced, embedded parts, good corrosion protection in advance. Two, brick masonry construction process (1) water the bricks Clay bricks must be watered the day before laying wet, generally water immersion brick four should be 1.5m, the moisture content is 10% ~ 15%, normal construction shall not be used dry brick wall; the rainy season may not use the moisture saturated brick walls; difficult winter watering, must increase mortar consistency. (two) mortar mixing The weight ratio of mortar mix ratio, the measurement accuracy of cement is 2%, sand, plaster is controlled in the range of 5%. Use mechanical agitation, mixing time is not less than 1.5min. (three) leveling bullet line source: Before masonry, o