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Rockfill concrete shear performance test study

Author: LingJun
Tutor: HeShiQin
School: North China University of
Course: Structural Engineering
Keywords: Rockfill concrete Self-compacting concrete RCC Experimental study Shear properties Shear failure mechanism
CLC: TV33
Type: Master's thesis
Year: 2011
Downloads: 49
Quote: 0
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Abstract


The rockfill Concrete is a new type of mass concrete in dams and other water conservancy projects in many applications. Rockfill concrete in the construction process of pouring large layered pouring concrete is not continuous pouring of cold joints. Cold joint mass concrete dams and other weak shear surface is very important to the stability against sliding However rockfill concrete shear performance of test is more lack. The references of Water Resources and Hydropower Engineering rock testing procedures for \obtained rockfill concrete and self-compacting concrete shear stress equation, shear stress - strain relations rockfill concrete self-compacting concrete shear failure mechanism, the results can provide a reference for practical engineering. The main content: designed rockfill concrete laboratory shear test method, and rockfill concrete compacting concrete shear test, carried out in the laboratory rockfill concrete mass concrete shear performance test provide the corresponding methods and standards. Rockfill concrete shear strength and failure mechanism through rockfill concrete specimens cold joint shear test, the shear strength and shear stress and strain relations between the layers of concrete rockfill study and analyze the test results failure mechanism, mainly including: large size rockfill concrete shear specimen produced shear test; shear strength of rockfill concrete layer between the establishment of its stress - strain relations; between rockfill Concrete layer anti-shear coefficient of friction and shear determine cohesion; rockfill concrete layer shear failure mechanism analysis. Shear properties of self-compacting concrete layer by cold joint shear test of self-compacting concrete, self-compacting concrete layer shear properties were studied, mainly including: large-size self-compacting concrete shear specimen production and shearing test; self-compacting concrete interlaminar shear strength and its stress - strain relationship building; shear coefficient of friction between the layers of self-compacting concrete anti-shear determination of cohesion; self-compacting concrete interlaminar shear failure mechanism analysis. Interlaminar shear properties of rockfill concrete RCC, comparative analysis of self-compacting concrete, mass concrete interlaminar shear properties of different construction levels combined with its interlaminar shear performance The research results show that the binding capacity between the layers of rockfill concrete interlaminar shear ability.

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CLC: > Industrial Technology > Hydraulic Engineering > Hydraulic structures > Concrete and reinforced concrete structures
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