1. Furan resin bonded sand is poor in collapsibility when it is used for non-ferrous metal casting, especially for thin section castings and heavy walled cores.

2. Collapsibility determines the readiness with which the moulding material will break in knockout and cleaning operations.

3. The relationship between coefficients of collapsibility and seismic subsidence can be set up through water content.

4. Furan resin sand is poor in collapsibility when it is used for Al alloy casting, specially for some large, thin section castings.

5. But there is few research on the collapsibility of loess affect to the ground fissures.

6. Finally, the relation between collapsibility coefficient and initial moisture content is discussed.

7. The sand molds or cores binder have high strength, good humidity resistance and excellent collapsibility.

8. Loess has the characteristics of structural properties, such as incomplete consolidation, collapsibility; And the multi-arch tunnel of highway has complex excavation steps and structure stress.

9. In general, the higher the atmospheric temperature strength of the sodium silicate sand is, the more deteriorative its collapsibility becomes.

10. The advantages of this process include small generation , long storage, good collapsibility and reused without decorating.

11. This paper presents a method for assessment of loess collapsibility using the data mining technology.

12. Finally, this paper gives some advice the treatment according to the different collapsibility loess foundation.

13. Developed for the alloy castings ( GDC, LPDC ), offering excellent collapsibility.

14. It is necessary to pay attention to the saline soils in the engineering construction because of its loosening expansion, collapsibility and corrosiveness.

14. Sentencedict.com try its best to collect and build good sentences.

15. The destruction of air raid shelter is caused by collapsibility.

16. The eastern part of the western Henan province is covered with eolian loess and alluvial or diluvial loess. The Holocene and Late Pleistocene loess have low to moderate collapsibility.

17. The core sand binder can be characterized with higher strength, easy collapsibility, better gradation and less cost, hence it is particularly suitably used in non-ferrous metal castings.