Shotcrete Method using Thixotropic Mortar for Long-Range Pumping Over 1000 Meters
By T. Sasatani, H. Fujiwara, K. Nagasawa and T. Hamago

Concrete Journal, Vol.50, No.2, Feb. 2012


Synopsis
This paper is on the shotcrete method added Thixotropy which can have materials transport for long distance by low pressure in using light weight hose. Existing technology was however not able to transport the concrete in long distance. This developed shotcrete mortar has the characteristics for long range transportation in adding Thixotropy. The contents of this paper include the technical summary of this method, the characteristics for long range transportation in adding Thixotropy and the laboratory test results on the materials quality that can apply to various cases. Further the procedure of the execution and the application example are shown in this paper.
Keywords:
long-range pumping, thixotropy, patch repair, strengthening, slope failure prevention, high strength shotcrete

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