Abstract
In the actual engineering design, it is too conservative for the calculation results for the urban sludge sintered shale brick to use the shear strength formula in the Design Specifications of Masonry Structure. To more effectively calculate this formula, this paper researches the straight joint shear performance test of urban sludge sintered solid shale bricks and porous brick masonry, and analyzes the failure mode of two kinds of brick masonry, and reaches the proposed formula of the straight joint shear strength. Then, this paper compares the proposed formula with the corresponding formulas in the specification, and reaches a high safety stock of the formula in the specification, and needs to correct the coefficient of material properties in the formula in the specification.
Highlights
From 2013 to 2015, there is a need to dispose 3.78 million tons of urban sludge, namely, 10,400 tons of sludge per day
In the process of sintering sludge shale brick, the silicate in the urban sludge melts and wraps heavy metal [1-2], and the combustion of organic matter forms a lot of tiny holes inside the brick
In the straight joint shear test of the urban sludge sintered solid shale brick and porous brick, the failure of specimens belongs to brittle failure
Summary
From 2013 to 2015, there is a need to dispose 3.78 million tons of urban sludge, namely, 10,400 tons of sludge per day. The use of urban sludge sintered shale brick is one of important means to harmlessly dispose the sludge. In the process of sintering sludge shale brick, the silicate in the urban sludge melts and wraps heavy metal [1-2], and the combustion of organic matter forms a lot of tiny holes inside the brick. The urban sludge sintered shale brick has the following advantages, such as light weight, sound insulation, heat preservation and so on. The research group carries out a large number of researches for the shale brick and concrete block as the test reference, so as to lay a solid foundation for the promotion of the urban sludge sintered shale brick
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