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The Mechanism Research on Anti-seepage and Anti-heave of the W-OH New Canal Material in Cold Region

Author: ZuoMin
Tutor: PanQiLai
School: Qinghai University
Course: Materials Science
Keywords: channel seepage control mortar microstructure durability
CLC: TV441
Type: Master's thesis
Year: 2012
Downloads: 64
Quote: 0
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Abstract


The canal lining freeze damage prevention has become one of the pressingproblems to be solved in production and practice in north drainage irrigation area. Inthis paper, a new type of organic material, the W-OH solution as anti-seepage andanti-freeze materials, the material has a strong adhesion with the reactions ofenvironmentally friendly with impermeable and freezing characteristics of the cementbody. The one hand, can prevent the collapse of the consolidation canal bed; the otherhand, the channels impermeable lining material impervious to anti-frost heavingfunction has important research value and positive social significance.This article was prepared by the soil consolidation layer and the W-OH mortar,and impermeable frost material properties were studied. The results show that: theW-OH solution can improve the performance of consolidation layer and mortar.Consolidation layer load compressive strength, tensile failure load and concentrationshowed a linear relation ship.As the concentration increases, the compressive strengthincreased. When the W-OH solution is adding7%, the sand has excellent anti-seepagebetter impermeable effect, and the loess W-OH solution mixing amount of more than8.5%.The results show that with the increase of the W-OH concentration, the densityof the mortar matrix to further improve the compressive and flexural strength ofmortar increased enhancement of mechanical properities and durability of researchmortar, W-OH concentration in13%of mortar impermeable frost capacity optimal.W-OH materials can change the microscopic sttucture of the mortar,the mortar inthe formation of hydration products and the network structure of the solidified gel,paste densification, reduced porosity, and thus to improve tjeir overall performacnce.

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CLC: > Industrial Technology > Hydraulic Engineering > Hydraulic material > Impervious material and sealing material > Impervious material
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