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A platform for research: civil engineering, architecture and urbanism
Anti-cracking method for coating at abutted seam position of PC outer wall
The invention relates to the field of building construction, in particular to an anti-cracking method for coating at the abutted seam position of a PC outer wall. The method comprises the steps that 1, a tongue-and-groove is reserved in the PC outer wall design deepening process, and the tongue-and-groove is 5 mm lower than the outer wall surface and 5 cm wider than the outer wall surface; 2, a PE rod and a Sika sealant are filled in an abutted seam of the external wall panel; 3, the sealant is scraped to be 5 mm lower than the surface of the tongue-and-groove through a scraper, and a thermal expansion space is reserved for the sealant; 4, anti-crack mortar is coated twice, a galvanized steel wire mesh is placed for closing up, and cracking of the outer wall coating caused by thermal expansion of the sealant in the later period is prevented; and 5, coating construction is performed according to design requirements. The construction method is higher in durability, and the problem that the service life of a building PC outer wall abutted seam is short can be solved.
本发明涉及建筑施工领域，具体是一种PC外墙拼缝位置涂料防开裂方法；包括步骤1、在PC外墙设计深化过程中预留企口，所述企口比外墙面低5mm，宽5cm；步骤2、外墙板拼缝缝隙中填塞PE棒+西卡密封胶；步骤3、用刮刀将密封胶刮至低于企口表面5mm，给密封胶预留热胀空间；步骤4、两遍抗裂砂浆并放置镀锌钢丝网收口，防止后期因密封胶热涨而导致外墙涂料开裂；步骤5、按设计要求进行涂料施工。本施工方法耐久性更强，能够克服建筑PC外墙拼缝使用寿命不长的问题。
Anti-cracking method for coating at abutted seam position of PC outer wall
The invention relates to the field of building construction, in particular to an anti-cracking method for coating at the abutted seam position of a PC outer wall. The method comprises the steps that 1, a tongue-and-groove is reserved in the PC outer wall design deepening process, and the tongue-and-groove is 5 mm lower than the outer wall surface and 5 cm wider than the outer wall surface; 2, a PE rod and a Sika sealant are filled in an abutted seam of the external wall panel; 3, the sealant is scraped to be 5 mm lower than the surface of the tongue-and-groove through a scraper, and a thermal expansion space is reserved for the sealant; 4, anti-crack mortar is coated twice, a galvanized steel wire mesh is placed for closing up, and cracking of the outer wall coating caused by thermal expansion of the sealant in the later period is prevented; and 5, coating construction is performed according to design requirements. The construction method is higher in durability, and the problem that the service life of a building PC outer wall abutted seam is short can be solved.
本发明涉及建筑施工领域，具体是一种PC外墙拼缝位置涂料防开裂方法；包括步骤1、在PC外墙设计深化过程中预留企口，所述企口比外墙面低5mm，宽5cm；步骤2、外墙板拼缝缝隙中填塞PE棒+西卡密封胶；步骤3、用刮刀将密封胶刮至低于企口表面5mm，给密封胶预留热胀空间；步骤4、两遍抗裂砂浆并放置镀锌钢丝网收口，防止后期因密封胶热涨而导致外墙涂料开裂；步骤5、按设计要求进行涂料施工。本施工方法耐久性更强，能够克服建筑PC外墙拼缝使用寿命不长的问题。
Anti-cracking method for coating at abutted seam position of PC outer wall
一种PC外墙拼缝位置涂料防开裂方法
XIAO BIAO (author) / XIA WENJIE (author) / GE FEI (author)
2022-02-25
Patent
Electronic Resource
Chinese
IPC:
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
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