Method for sampling detection of bonding strength of exterior facing pre-buried stone

Abstract

The invention discloses a method for sampling detection of the bonding strength of an exterior facing pre-buried stone. The method comprises the following steps: superposing the center of a sample region, the center of an anchoring part and the center of a drawing tester, removing adverse factors for eccentric loading, pulling a facing stone sample from a concrete wall body through the drawing tester, and calculating the bonding strength of the exterior facing pre-buried stone according to a maximum drawing force value and a sectional area. The method is easy and convenient to operate and lowin cost and can directly and accurately reflect the bonding strength of the exterior facing pre-buried stone and provide a basis for quality detection and authentication; meanwhile, the adverse factors for eccentric loading are eliminated, and a detection result is reasonable and reliable; furthermore, the method can be applicable to four conventional anchoring part forms, and fills the blank in the aspect of sampling detection of the bonding strength test of the exterior facing pre-buried stone; a practical and quantifiable method is provided for guaranteeing the bonding quality of the exterior facing pre-buried stone; and the used drawing tester is simple in structure, low in cost, accurate in detection result and favorable for being popularized and applied.

Description

technical field [0001] The invention relates to the field of construction engineering detection, in particular to a method for sampling and detecting the bonding strength of reversed stone on an exterior finish. Background technique [0002] The external facing stone back-cutting process is a technological form in which the decorative stone is laid in the mold in advance during the production process of the precast concrete exterior wall, and then the concrete is poured to connect the decorative stone and the external wall panel into one. It has the advantages of accurate stone position, regular surface, overall assembly, and can effectively improve the construction progress. It differs from the wet paste of decorative stones in that: anchors are set on the back of the decorative stones that adopt the anti-beating process, and the decorative stones are anchored in the concrete wall through the anchors. Therefore, the bonding strength between the facing stone and the concret...

AI Technical Summary

Problems solved by technology

However, because the determinants of the bond strength of the external facing stone include the bond between the stone and the concrete and the anchoring of the anchor on the back of the stone, the traditional method cannot be applied, and no other methods have been found for the external facing stone. Relevant technologies for bond strength testing, so it is urgent to develop related technologies to fill the gap

Images