Building construction and construction method for autoclaved aerated concrete blocks

Abstract

The invention provides a steam curing aerated concrete block building structure and a construction method thereof. Watering is not required before the laying, the average mortar joint thickness is less than or equal to 8 mm, and bonding mortar is utilized to bond blocks; anti-crack mortar which is a novel building structure used for filling wall is adopted as a bonding layer, thereby reaching the effects that the laying of the steam curing aerated concrete blocks is firm, the surface layer plastering is good, the anti-crack effect of the wall surface is good, and the defects that the mortar hydration during laying and surface finishing in the traditional construction method is inadequate, the cracking and leakage of the wall body caused by the dry-wet circulation of the wall body are difficult to be controlled, and the plastering layer is hollow and will shed are overcome. Meanwhile, the invention also provides a technical process for the steam curing aerated concrete block wall body and the wall surface construction.

Description

Technical field: [0001] The invention designs a building structure and construction method for filling wall masonry, in particular to a building structure and construction method for filling wall masonry with autoclaved aerated concrete blocks. Background technique: [0002] Autoclaved aerated concrete block [National Standard "Autoclaved Aerated Concrete Block" (GB / T11968)] is an autoclaved lightweight porous material made of cement, lime, slag, fly ash or sand as the main raw materials. It has excellent properties such as thermal insulation, heat insulation, sound insulation, and fire prevention. The products are widely used in industrial, civil, public, commercial and residential buildings. However, in the application of autoclaved aerated concrete blocks, because it is a silicate material with a porous structure, most of the pores are in the shape of an "ink bottle". In the production process, only a small part of water evaporates to form capillary pores, and the weak ...

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Problems solved by technology

[0003] (1) Insufficient hydration of mortar

The closed porous feature of the autoclaved aerated concrete block makes its surface absorb water quickly. When watering, the water easily enters the surface at a depth of 10-20mm, but it is difficult to enter again afterwards, forming the so-called impermeable phenomenon. The traditional sintered clay brick masonry process is to try to pour the autoclaved aerated concrete block thoroughly, and the relevant regulations require that the autoclaved aerated concrete block be watered twice: that is, water once 1 to 2 days before the masonry , pour water again about 1 hour before masonry, but it is difficult to make the autoclaved aerated concrete block absorb more water in actual operation. In this case, the autoclaved aerated concrete block not only It cannot provide enough water required for mortar hydration, and it will continuously absorb water from the mortar, making the mortar hydration insufficient, resulting in the mortar strength not meeting the requirements

This is the root cause of the failure of autoclaved aerated concrete blocks and poor plastering

[0004] (2) The watering process also leads to inconsistencies with the specification requirements

At the same time, too thick mortar joints also greatly reduce the thermal performance of the wall.

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