Regenerated composite reinforced concrete beam and construction method thereof
A technology of reinforced concrete beams and construction methods, applied in the direction of joists, girders, truss beams, etc., to achieve the effect of less energy consumption and resource consumption, simple and easy construction methods, and good bonding
Inactive Publication Date: 2011-07-27
SOUTH CHINA UNIV OF TECH
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However, the above-mentioned treatment process is not only cumbersome, but also consumes a lot of energy. In addition, a large amount of water, cement, sand and energy are still consumed in the preparation process of recycled aggregate concrete. Therefore, it is necessary to seek a more reasonable strategy for recycling concrete waste.
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[0022] The specific implementation of the present invention will be further described below in conjunction with the drawings and embodiments.
[0023] Such as figure 1 , 2 As shown in Figure 3, a recycled mixed reinforced concrete beam includes steel bars 1, new concrete 2, and discarded concrete blocks 3. figure 1 It is a three-dimensional schematic diagram of recycled mixed reinforced concrete beam. figure 2 Yes figure 1 A-A section schematic diagram of the recycled mixed reinforced concrete beam shown, image 3 Yes figure 1 The B-B cross-sectional schematic diagram of the recycled mixed reinforced concrete beam shown.
[0024] When making recycled mixed reinforced concrete beams, first put the tied steel bars in the formwork, then pour a layer of new concrete, and then alternately put the discarded concrete blocks and new concrete into the formwork, and vibrate sufficiently to make each discarded concrete block The spaces are filled with new concrete and the steel bars are ...
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The invention discloses a regenerated mixed reinforced concrete beam and a construction method thereof. The regenerated mixed reinforced concrete beam comprises disused concrete blocks, new concrete, and steel bars, wherein the disused concrete blocks are dispersed in the beam, and the configuration mode of the reinforcement is same to that of the conventional reinforced concrete. The construction includes the steps that: firstly, bound steel bars are put in a formwork, then a layer of new concrete is poured, and then the discussed concrete blocks and new concrete are alternately put in the formwork, wherein the mass ratio of the discussed concrete blocks and the new concrete is 1:4 to 1:1. Compared with conventional regenerated aggregate concrete member, the invention can save a great amount of energy consumed in the processes of breaking, screening, purifying and the like for the concrete waste, save a great amount of water, cement, sandstones and energy consumed for preparing regenerated aggregate concrete having equivalent volume with the disused concrete blocks, and provides a new approach for building industry to perform the national strategy of environmental protection, energy conservation and emission reduction.
Description
technical field [0001] The invention relates to a recycled mixed reinforced concrete beam and a construction method thereof. Background technique [0002] At present, most of the concrete solid waste generated by the demolition of old buildings in my country is directly transported to the suburbs for stacking, while the concrete needed for new buildings is completely made of new cement, gravel, river sand and other materials. The resulting hazards include: ①Waste encroaching on land, polluting soil and water bodies; ②Excessive mountain quarrying destroys surface vegetation and original landforms, causing soil erosion and deterioration of the ecological environment; ③Extensive dredging of river sand destroys river beds and dams, endanger the safety of rivers; ④ cement production consumes a lot of energy and causes serious environmental pollution. For this reason, how to scientifically use the concrete solid waste generated by the demolition of old buildings to minimize the ...
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IPC IPC(8): E04C3/20
Inventor 吴波刘伟刘琼祥许喆
Owner SOUTH CHINA UNIV OF TECH