In terms of biomineralization, aragonite can be divided into biogenic aragonite and non-biogenic aragonite.

In terms of biomineralization, aragonite can be divided into biogenic aragonite and non-biogenic aragonite.

Prepare of XD1 series adhesives for repairing stone relics;

This paper summarizes the main application of NDT in the investigation of weathering extent of stone relics,quality assessment of the consolidation and restoration of stone,testing of fissures distribution and grouting depth,detecting of grottoes seepage,studies of frescos color and analysis of paint element.

China is home to many precious historic stones, mostly exposed the wild, which have been subjected to varying degrees of weathering erosion in a lengthy historical changes, and especially been aggravated damage by the pollution caused with the development of modern industrial.

A good many of historic stones exposed out-of-doors are badly damaged due to natural and human factors.

This method should develop a new idea for historic stone conservation.

Ultrasonic detecting is a non-destructive testing method to get the inner information of an object with high resolution, so it is an effective means to detect weathering degrees of lithoid cultural relics.

There are four types of weathering in Zhongxian stone cultural relics: fractural weathering,shaly-flaky weathering, flocculent-powdered weathering and loose-swelling weathering.

Latex resin has gradually used in the protection of stone cultural relics, because of its low toxicity and rare pollution.