Repairing material for ancient building black brick wall cracks and construction process

Abstract

The invention discloses a repairing material for ancient building black brick wall cracks and a construction process, and belongs to the field of ancient building repairing. Quicklime, slaked lime, black brick ash, quartz sand, 107 building glue powder, hydroxypropyl methyl cellulose, starch ether, a water reducing agent and an antifoaming agent are fully mixed according to a mass ratio, and thenprepared silicone acrylic emulsion modified glutinous rice slurry is added and fully stirred to obtain the product. The repairing material meets the requirements of cultural relic protection and repair, has good flowability, is beneficial to grouting operation and full filling of gaps, and has good compressive strength and bonding strength, good toughness, small shrinkage rate, good water resistance and strong ageing resistance after being cured. The repairing material has good adhesive force with black bricks, the appearance color is close to that of a black brick wall, the repairing materialhas good compatibility with the black brick wall, the cost is low, and the economic practicability is high. The repair material construction process is elaborated in detail, construction is convenient and fast, and the rework period can be effectively shortened.

Description

technical field [0001] The invention belongs to the field of ancient building restoration, and relates to a repairing material and construction technology for cracks in ancient building brick bodies. Background technique [0002] As a cultural heritage, ancient architecture not only has a strong historical and cultural heritage, but also has important value in art, technology, architecture, aesthetics and other aspects. Green bricks are one of the commonly used ancient building materials. Cracks often occur in the walls of blue bricks due to the following reasons: (1) Temperature cracks: between the walls of blue bricks are often due to thermal expansion and contraction of materials, swelling and shrinking when wet. Inconsistent shrinkage caused by different conditions leads to cracking of the wall; (2) settlement cracks: cracks in the wall caused by uneven settlement of the foundation foundation; (3) deformation cracks: cracks in the wall surface caused by deformation such ...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the repair materials used for cracks in ancient building walls are still Portland cement mortar, but this repair material has the following problems: (1) The use of cement mortar to repair ancient buildings does not conform to the authenticity principle of cultural relics repair and protection

(3) The existing crack repair materials have problems such as low bonding strength between old and new materials, weakened overall performance of the structure, long maintenance time, and complicated construction procedures.

Therefore, the existing repair materials for the cracks in the blue brick walls of ancient buildings are still not ideal.

Looking for an ancient material that satisfies the principle of restoration and protection of cultural relics, has short setting time, good durability, does not require long curing time, and can solve the problems of low bonding strength at the joint surface of old and new materials and poor overall performance of the structure in the prior art. Repairing materials for cracks in building blue brick walls is an urgent task

[0004] Most of the repairing construction techniques proposed for wall cracks in the prior art are aimed at concrete building walls, and rarely involve crack repairing construction techniques in ancient building blue brick walls.

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