CN101324115B

CN101324115B - Steel tube regeneration mixing component

Info

Publication number: CN101324115B
Application number: CN2008100292540A
Authority: CN
Inventors: 吴波; 刘琼祥; 许喆; 刘伟
Original assignee: South China University of Technology SCUT
Current assignee: South China University of Technology SCUT
Priority date: 2008-07-04
Filing date: 2008-07-04
Publication date: 2010-06-02
Anticipated expiration: 2028-07-04
Also published as: CN101324115A

Abstract

The invention discloses a steel pipe regeneration mixed component, comprising one or more abandoned concrete blocks, new concrete and a steel pipe; the abandoned concrete blocks are arranged inside the steel pipe; the gap between the abandoned concrete blocks and the internal wall of the steel pipe is filled with the new concrete. Compared with the existing regeneration aggregate concrete component, the steel pipe regeneration mixed component of the invention saves a plurality of energy resources consumed during the processes of the concrete wastes such as crushing, screening, purifying, etc., and a plurality of water, cement, sandstone and energy resources consumed when compounding the regeneration aggregate concrete with the comparative quantity of the abandoned concrete, and provides a novel mean for the national strategy in the building industry of environmental protection, energy saving and exhaust reduction.

Description

Steel tube regeneration mixing component

Technical field

The present invention relates to concrete debris regenerative use technology field, be specifically related to a kind of steel tube regeneration mixing component that comprises waste concrete block.

Background technology

At present, the concrete solid waste overwhelming majority that the old building demolition of China produces all is directly to transport the countryside to stack, and the concrete that new building needs adopts materials such as new cement, stone, river sand formulated fully.The harm that causes thus comprises: 1. discarded object appropriation of land, contaminated soil and water body; 2. excessively cut into a mountain for quarrying and destroy surface vegetation and original landforms, cause the soil erosion and the deterioration of the ecological environment; 3. a large amount of washing in a pan dug sand breaking-up riverbed, river and dykes and dams, jeopardizes river safety; 4. a large amount of energy of manufacture of cement consumption and cause serious environment pollution.For this reason, the concrete the solid waste how old building demolition of scientific utilization produces, to reduce the consumption of new building as far as possible, become whole building trade and practiced " environmental protection, energy-conservation, reduction of discharging " national strategy institute problem demanding prompt solution materials such as new cement, stone, river sand.

Regenerated aggregate concrete utilizes approach all to obtain to a certain degree research at home and abroad as concrete debris a kind of again, so-called regenerated aggregate concrete, it is exactly concrete debris with old building demolition gained, through processes such as fragmentation, screening, purifications, obtain the particle of a large amount of aggregate yardsticks, utilize its preparation then and as placed concrete.But above-mentioned processing not only process is loaded down with trivial details, and consume a large amount of energy, in the process for preparation of regenerated aggregate concrete, still need wasteful water gaging, cement, sandstone and the energy in addition, therefore be necessary to seek a kind of more rational concrete debris and recycle strategy.

Summary of the invention

Purpose of the present invention is exactly for overcoming the deficiencies in the prior art, a kind of steel tube regeneration mixing component is provided, by exempting or simplify processing procedures such as the fragmentation of concrete debris in utilizing again, screening, purification, thereby save a large amount of energy that said process consumed, and spent big water gaging, cement, sandstone and the energy of the regenerated aggregate concrete suitable with waste concrete block volume preparation, finally concrete debris is recycled with less energy consumption and consumed resource.

Purpose of the present invention realizes by following method:

A kind of steel tube regeneration mixing component is characterized in that comprising one or more waste concrete blocks, as placed concrete and steel pipe, and described waste concrete block is positioned at steel duct, and as placed concrete is filled up in the space between waste concrete block and steel pipe inwall.

In the above-mentioned steel tube regeneration mixing component, described waste concrete block is the discarded concrete block that old structure (as building, structure, road, bridge or dykes and dams etc.) is removed gained.

In the above-mentioned steel tube regeneration mixing component, described waste concrete block should be able to directly or after simple processing be put into described steel pipe.

In the above-mentioned steel tube regeneration mixing component, described waste concrete block is through removing the discarded concrete block of concrete cover.

In the above-mentioned steel tube regeneration mixing component, described waste concrete block is for removing all or part of reinforcing bar discarded concrete block afterwards.

In the above-mentioned steel tube regeneration mixing component, place described a plurality of discarded concretes block gap, between fill up as placed concrete.

In the above-mentioned steel tube regeneration mixing component, described steel pipe surpasses 200N/mm for the Tensile strength standard value ²Seamless steel pipe or welded steel pipe, steel tube section is circle or polygon.

In the above-mentioned steel tube regeneration mixing component, described as placed concrete is natural aggregate concrete or regenerated aggregate concrete.

With respect to prior art, the present invention has following advantage: processing procedures such as fragmentation during concrete debris utilizes again, screening, purification have been exempted or simplified in (1), thereby a large amount of energy that said process consumed have been saved, and spent big water gaging, cement, sandstone and the energy of the regenerated aggregate concrete suitable with waste concrete block volume preparation, finally concrete debris is recycled with less energy consumption and consumed resource.(2) under the identical situation of steel using amount, steel tube regeneration mixing component has than reinforcing bar-better supporting capacity of regenerated aggregate concrete member and ductility.(3) under the identical situation of supporting capacity, steel tube regeneration mixing component has than the sectional dimension that reinforcing bar-the regenerated aggregate concrete member is littler, thereby reduces material usage, increases the building usage space.

Description of drawings

Fig. 1 is one embodiment of the invention round steel pipe regenerative mixed column schematic perspective view;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 be the A-A of Fig. 2 when waste concrete block among the embodiment is one section large-size block to generalized section, cutting plane is by one group in the two groups short mutually orthogonal rod irons;

Fig. 4 be the A-A of Fig. 2 when waste concrete block among the embodiment is two sections large-size blocks to generalized section, cutting plane is by one group in the two groups short mutually orthogonal rod irons;

Fig. 5 is that A-A as the Fig. 2 when being some small size blocks of waste concrete block among the embodiment is to generalized section.

Fig. 6 is that the B-B of Fig. 3, Fig. 4 is to generalized section; Shown in the figure: 1, steel pipe 2, as placed concrete 3, stirrup 4, waste concrete block 5, short rod iron.

The specific embodiment

Below in conjunction with drawings and Examples concrete enforcement of the present invention is further described.

Shown in Fig. 1,2,3,4,5,6, a kind of round steel pipe regenerative mixed column comprises round steel pipe 1, as placed concrete 2, stirrup 3, waste concrete block 4, short rod iron 5.Fig. 1 is a round steel pipe regenerative mixed column schematic perspective view.Fig. 2 is the vertical view of Fig. 1.In the embodiment, steel pipe can select for use the Tensile strength standard value to surpass 200N/mm ²Seamless steel pipe or welded steel pipe, as placed concrete can be natural aggregate concrete or regenerated aggregate concrete.When waste concrete block among the embodiment is one section large-size block, the A-A of Fig. 2 sees Fig. 3 to generalized section, cutting plane is by one group in the two groups short mutually orthogonal rod irons, 1 is steel pipe, waste concrete block 4 is arranged in steel pipe 1 inside (concrete work progress, can separate contactless with steel pipe 1 inwall by the stirrup 3 and the short rod iron 5 at its two ends), as placed concrete 2 fills up the space between waste concrete block 4 and steel pipe 1 inwall.

When waste concrete block among the embodiment is two sections large-size blocks, the A-A of Fig. 2 sees Fig. 4 to generalized section, cutting plane is by one group in the two groups short mutually orthogonal rod irons, 1 is steel pipe, it is inner and each other with contactless at interval (the concrete work progress of as placed concrete 2 that two sections waste concrete blocks 4 all are arranged in steel pipe 1, two sections waste concrete blocks 4 all can separate contactless with steel pipe 1 inwall by the stirrup 3 and the short rod iron 5 at its two ends), as placed concrete 2 fills up the space between waste concrete block 4 and steel pipe 1 inwall.Situation when waste concrete block among the embodiment is multistage large-size block when being two sections large-size blocks is similar.

When waste concrete block among the embodiment was some small size blocks, the A-A of Fig. 2 saw Fig. 5 to generalized section, and 1 is steel pipe, and some waste concrete blocks 4 intersperse among in the as placed concrete 2, are cast in jointly in the steel pipe 1.

Fig. 6 is that the B-B of Fig. 3, Fig. 4 is to generalized section, be fixed with stirrup 3 around waste concrete block 4 ends, the short rod iron 5 of 4 levels of welding is to isolate stirrup 3 and round steel pipe 1 inwall on the stirrup 3, and as placed concrete 2 fills up the space between waste concrete block 4 and steel pipe 1 inwall.

The method according to this invention can also be developed a series of embodiment, can be circle or polygon as steel pipe.Protection scope of the present invention is not limited to the scope of the foregoing description statement.

Claims

1. a steel tube regeneration mixing component is characterized in that comprising one or more waste concrete blocks, as placed concrete and steel pipe, and described waste concrete block is positioned at steel duct, and as placed concrete is filled up in the space between waste concrete block and steel pipe inwall.

2. steel tube regeneration mixing component according to claim 1 is characterized in that described waste concrete block is the discarded concrete block that old building, structure, road or bridge are removed gained.

3. steel tube regeneration mixing component according to claim 1 is characterized in that described waste concrete block is the discarded concrete block through the removal concrete cover.

4. steel tube regeneration mixing component according to claim 1 is characterized in that described waste concrete block is for removing all or part of reinforcing bar discarded concrete block afterwards.

5. steel tube regeneration mixing component according to claim 1 is characterized in that described a plurality of discarded concretes block gap places, between fill up as placed concrete.

6. according to each described steel tube regeneration mixing component of claim 1～5, it is characterized in that described steel pipe surpasses 200N/mm for the Tensile strength standard value ²Seamless steel pipe or welded steel pipe, steel tube section is circle or polygon.

7. steel tube regeneration mixing component according to claim 6 is characterized in that described as placed concrete is natural aggregate concrete or regenerated aggregate concrete.