阅读说明：本技术 一种trc再生骨料混凝土砌块及其加工方法 (TRC recycled aggregate concrete block and processing method thereof ) 是由 梁冠军 尤超 闫秀芳 张涛 李西 张瑞 林祖宏 于 2020-06-19 设计创作，主要内容包括：本发明公开了一种TRC再生骨料混凝土砌块及其加工方法,包括：砌块本体,所述砌块本体内部设置减重槽且减重槽呈矩形结构设置,所述减重槽的内部设有强化板且强化板设置有两组并沿中心线呈对称分布,两组所述强化板之间形成正六边形的支撑结构且中部形成正六边形的通风孔,所述减重槽的两侧设有消音槽且消音槽呈长条状结构设置,所述消音槽的两侧设有编织网且编制网与砌块本体之间通过浇筑一体成型。本发明通过利用建筑工地中的废混凝土、废砖、废砂灰为原料,充分的利用力废弃资源,实现了节能减排和绿色环保的目的,在砌块本体内部设置减重槽且减重槽内部设置强化板,在减轻了砌块本体重量的同时保证了砌块本体的结构强度,便于实现轻量化装配。(The invention discloses a TRC recycled aggregate concrete block and a processing method thereof, wherein the TRC recycled aggregate concrete block comprises the following steps: the building block body, building block body inside sets up subtracts the heavy groove and subtracts the groove and be the setting of rectangle structure, it is provided with two sets ofly and is the symmetric distribution along the central line to subtract the inside in heavy groove and be equipped with the reinforcing plate and the reinforcing plate, and is two sets of form regular hexagon's bearing structure and middle part between the reinforcing plate and form regular hexagon's ventilation hole, it is equipped with the setting of long banding structure to subtract the both sides in groove and be equipped with amortization groove and amortization groove, the both sides in amortization groove are equipped with the mesh grid and weave through pouring integrated into one piece between mesh grid. According to the invention, waste concrete, waste bricks and waste sand ash in a building site are used as raw materials, waste resources are fully utilized, and the purposes of energy conservation, emission reduction and environmental protection are realized.)

1. A TRC recycled aggregate concrete block is characterized in that: the method comprises the following steps: building block body (1), building block body (1) inside sets up subtracts heavy groove (4) and is the rectangle structure setting, the inside that subtracts heavy groove (4) is equipped with and reinforces board (6) and reinforce board (6) and be provided with two sets ofly and be symmetric distribution along the central line, and is two sets of reinforce board (6) between form regular hexagon's bearing structure and middle part formation regular hexagon's ventilation hole (5), the both sides that subtract heavy groove (4) are equipped with amortization groove (3) and amortization groove (3) are rectangular form structure setting, the both sides of amortization groove (3) are equipped with mesh grid (2) and weave through pouring integrated into one piece between net and building block body (1).

2. The TRC recycled aggregate concrete block of claim 1, wherein: the building block is characterized in that a clamping groove (7) with a rectangular structure is formed in the left side of the building block body (1), a rectangular clamping block (8) matched with the clamping groove (7) is arranged on the right side of the building block body, and the clamping block (8) and the clamping groove (7) are mutually embedded.

3. The TRC recycled aggregate concrete block of claim 1, wherein: the woven net (2) is composed of reinforcing fibers (9), and the reinforcing fibers (9) are woven into a net structure through a flat weaving method.

4. The method for processing the TRC recycled aggregate concrete block according to claim 1, wherein the method comprises the following steps: the processing method comprises the following steps:

step 1: the method comprises the following steps of taking waste concrete, waste bricks and sand-lime waste generated by construction of a building site as raw materials, collecting and transporting the raw materials to a crushing device for crushing, screening the crushed raw materials, and removing impurities such as metal objects and wood blocks in the raw materials in the screening process to obtain primary recycled aggregate for later use;

step 2: and putting the recycled aggregate into a closed container with the relative humidity of 40-80% and the volume concentration of carbon dioxide of 10-90% for carbon reinforcement treatment until the treatment percentage of the recycled aggregate is 70-90%.

And step 3: and (3) adding the recycled aggregate obtained in the step (2), cement, lime, anhydrite, aluminum powder and a foaming agent into a stirring device in proportion for stirring, wherein the stirring temperature is as follows: the stirring time is as follows at 30-50 deg.C: and (5) obtaining mixed slurry after 10-20 min.

And 4, step 4: pouring the mixed slurry obtained in the step 3 into a forming die of the building block, adding a woven mesh woven by using a reinforced fiber by using a flat weaving method into the mixed slurry in the pouring process, and sending the mixed slurry and the slurry into a drying device for drying, wherein the drying temperature is as follows: 80-120 ℃, and the drying time is as follows: and (3) drying for 30-50 min, and then cutting and finishing to obtain a concrete block initial blank.

And 5: and (4) transporting the concrete block blank obtained in the step (4) to steam curing equipment, and performing steam curing in a closed container with the relative humidity of 40% -80%, wherein the steam curing time is as follows: and (3) after 2-3 h, simultaneously, putting the blocks into a closed container with the volume concentration of carbon dioxide of 10-90% again for strengthening treatment after the steam curing is finished, and obtaining the low-shrinkage TRC recycled aggregate concrete block.

5. The method for processing the TRC recycled aggregate concrete block according to claim 4, wherein the method comprises the following steps: the slurry of the step 3 comprises the following raw materials in percentage by weight: 50% of recycled aggregate, 20% of cement, 10% of lime, 10% of anhydrite, 8% of aluminum powder and 2% of foaming agent.

6. The method for processing the TRC recycled aggregate concrete block according to claim 4, wherein the method comprises the following steps: the particle size of the recycled aggregate sieved in the step 1 is 1-20 mm.

7. The method for processing the TRC recycled aggregate concrete block according to claim 5, wherein the method comprises the following steps: the foaming agent is sodium dodecyl sulfate or sodium alkyl benzene sulfonate.

Technical Field

The invention relates to the technical field of recycled aggregate concrete blocks, in particular to a TRC recycled aggregate concrete block and a processing method thereof.

Background

The fiber woven net reinforced concrete (TRC) is a new type reinforced building material formed by using cement paste, mortar or concrete as base material, using proper quantity of discontinuous short fibre or continuous long fibre as reinforcing material and uniformly mixing them in the concrete.

In the process of urban construction in China, a large amount of construction waste is generated, wherein 50% -60% of the construction waste is waste concrete, and the construction waste is mostly treated in a landfill mode for a long time, so that a large amount of transportation cost is consumed, land resources are more tense, and soil quality and water quality of a landfill area are polluted. In recent years, research on the development of recycled aggregate concrete by making waste concrete into recycled aggregate to replace part of coarse aggregate has been paid extensive attention

At present, the existing recycled aggregate concrete block is mostly in a solid structure, the weight of the existing recycled aggregate concrete block is large, the problem of expansion with heat and contraction with cold exists, and the structural strength of the existing recycled aggregate concrete block is low. For this reason, a new scheme needs to be designed to give improvements.

Disclosure of Invention

The invention aims to provide a TRC recycled aggregate concrete block and a processing method thereof.

In order to achieve the purpose, the invention provides the following technical scheme: a TRC recycled aggregate concrete block and a processing method thereof comprise the following steps: the building block body, building block body inside sets up subtracts the heavy groove and subtracts the groove and be the setting of rectangle structure, it is provided with two sets ofly and is the symmetric distribution along the central line to subtract the inside in heavy groove and be equipped with the reinforcing plate and the reinforcing plate, and is two sets of form regular hexagon's bearing structure and middle part between the reinforcing plate and form regular hexagon's ventilation hole, it is equipped with the setting of long banding structure to subtract the both sides in groove and be equipped with amortization groove and amortization groove, the both sides in amortization groove are equipped with the mesh grid and weave through pouring integrated into one piece between mesh grid.

As a preferred embodiment of the invention, the left side of the block body is provided with a clamping groove with a rectangular structure, the right side of the block body is provided with a rectangular clamping block matched with the clamping groove, and the clamping block and the clamping groove are mutually embedded.

In a preferred embodiment of the present invention, the woven mesh is composed of reinforcing fibers, and the reinforcing fibers are woven by a flat weaving method to form a mesh structure.

As a preferred embodiment of the present invention, the processing method comprises the steps of:

step 1: the method comprises the following steps of taking waste concrete, waste bricks and sand-lime waste generated by construction of a building site as raw materials, collecting and transporting the raw materials to a crushing device for crushing, screening the crushed raw materials, and removing impurities such as metal objects and wood blocks in the raw materials in the screening process to obtain primary recycled aggregate for later use;

step 2: and putting the recycled aggregate into a closed container with the relative humidity of 40-80% and the volume concentration of carbon dioxide of 10-90% for carbon reinforcement treatment until the treatment percentage of the recycled aggregate is 70-90%.

And step 3: and (3) adding the recycled aggregate obtained in the step (2), cement, lime, anhydrite, aluminum powder and a foaming agent into a stirring device in proportion for stirring, wherein the stirring temperature is as follows: the stirring time is as follows at 30-50 deg.C: and (5) obtaining mixed slurry after 10-20 min.

And 4, step 4: pouring the mixed slurry obtained in the step 3 into a forming die of the building block, adding a woven mesh woven by using a reinforced fiber by using a flat weaving method into the mixed slurry in the pouring process, and sending the mixed slurry and the slurry into a drying device for drying, wherein the drying temperature is as follows: 80-120 ℃, and the drying time is as follows: and (3) drying for 30-50 min, and then cutting and finishing to obtain a concrete block initial blank.

And 5: and (4) transporting the concrete block blank obtained in the step (4) to steam curing equipment, and performing steam curing in a closed container with the relative humidity of 40% -80%, wherein the steam curing time is as follows: and (3) after 2-3 h, simultaneously, putting the blocks into a closed container with the volume concentration of carbon dioxide of 10-90% again for strengthening treatment after the steam curing is finished, and obtaining the low-shrinkage TRC recycled aggregate concrete block.

As a preferred embodiment of the present invention, the slurry raw material of step 3 comprises the following components by weight percent: 50% of recycled aggregate, 20% of cement, 10% of lime, 10% of anhydrite, 8% of aluminum powder and 2% of foaming agent.

In a preferred embodiment of the present invention, the recycled aggregate sieved in step 1 has a particle size of 1 to 20 mm.

As a preferred embodiment of the present invention, the foaming agent is sodium lauryl sulfate or sodium alkyl benzene sulfonate.

Compared with the prior art, the invention has the following beneficial effects:

(1) the invention utilizes waste concrete, waste bricks and waste sand ash in the construction site as raw materials, fully utilizes waste resources and realizes the purposes of energy conservation, emission reduction and environmental protection.

(2) According to the invention, the weight reducing grooves are formed in the building block body, and the reinforcing plates are arranged in the weight reducing grooves, so that the weight of the building block body is reduced, the structural strength of the building block body is ensured, and light-weight assembly is facilitated.

(3) According to the invention, the woven mesh is arranged in the building block body, is woven by reinforcing fibers by using a flat weaving method and is formed together with the building block body in the pouring process of the building block body, so that the structural strength of the building block body is increased.

(4) The method carries out carbon strengthening treatment on the recycled aggregate in the processing process, improves the strength of the recycled aggregate, simultaneously carries out carbon strengthening on the recycled aggregate again after molding, realizes low shrinkage of the building block, and effectively avoids expansion with heat and contraction with cold.

Drawings

FIG. 1 is a schematic top view of the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention;

fig. 3 is a schematic view of the structure of the woven mesh of the present invention.

In the figure: the building block comprises a building block body-1, a woven mesh-2, a silencing groove-3, a lightening groove-4, a vent-5, a reinforcing plate-6, a clamping groove-7, a clamping block-8 and reinforcing fibers-9.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a TRC recycled aggregate concrete block and a processing method thereof comprise the following steps: building block body 1, building block body 1 is inside to set up subtract heavy groove 4 and be the setting of rectangle structure, subtract the inside in heavy groove 4 and be equipped with reinforced board 6 and be provided with two sets ofly and be the symmetric distribution along the central line, form orthohexagonal bearing structure and middle part between two sets of reinforced boards 6 and form orthohexagonal ventilation hole 5, it subtracts heavy groove 4 and subtract the inside reinforcing board 5 that sets up of heavy groove 4 to set up in building block body 1, the structural strength of building block body 1 has been guaranteed when having alleviateed building block body 1 weight, be convenient for realize the lightweight assembly, the both sides that subtract heavy groove 4 are equipped with amortization groove 3 and amortization groove 3 is rectangular form structure setting, the both sides of amortization groove 3 are equipped with woven mesh 2 and weave between net and the building block body 1 through pouring integrated into one piece, while amortization groove 3's.

Further improved, as shown in fig. 1: the left side of the building block body 1 is provided with a clamping groove 7 with a rectangular structure, the right side of the building block body is provided with a rectangular clamping block 8 matched with the clamping groove 7, the clamping block 8 and the clamping groove 7 are mutually embedded, and the clamping block 8 and the clamping groove 7 are arranged to facilitate splicing of the building block body 1.

In a further improvement, as shown in fig. 3: the mesh grid 2 is composed of reinforcing fibers 9, the reinforcing fibers 9 are woven into a net structure through a flat weaving method, meanwhile, the mesh grid is woven through the reinforcing fibers through the flat weaving method and integrally formed with the building block body 1 in a pouring mode, and therefore structural strength of the building block is improved.

In a further improvement, the processing method comprises the following steps:

step 1: taking waste concrete, waste bricks and waste sand ash generated in construction of a building site as raw materials, collecting and transporting the raw materials to a crushing device for crushing, screening the crushed raw materials, and removing impurities such as metal objects, wood blocks and the like in the raw materials in the screening process to obtain primary recycled aggregate for later use;

step 2: and putting the recycled aggregate into a closed container with the relative humidity of 40-80% and the volume concentration of carbon dioxide of 10-90% for carbon reinforcement treatment until the treatment percentage of the recycled aggregate is 70-90%.

And step 3: and (3) adding the recycled aggregate obtained in the step (2), cement, lime, anhydrite, aluminum powder and a foaming agent into a stirring device in proportion for stirring, wherein the stirring temperature is as follows: the stirring time is as follows at 30-50 deg.C: and (5) obtaining mixed slurry after 10-20 min.

And 4, step 4: pouring the mixed slurry obtained in the step 3 into a forming die of the building block, adding a woven mesh woven by using a reinforced fiber by using a flat weaving method into the mixed slurry in the pouring process, and sending the mixed slurry and the slurry into a drying device for drying, wherein the drying temperature is as follows: 80-120 ℃, and the drying time is as follows: and (3) drying for 30-50 min, and then cutting and finishing to obtain a concrete block initial blank.

And 5: and (4) transporting the concrete block blank obtained in the step (4) to steam curing equipment, and performing steam curing in a closed container with the relative humidity of 40% -80%, wherein the steam curing time is as follows: and (3) after 2-3 h, simultaneously, putting the blocks into a closed container with the volume concentration of carbon dioxide of 10-90% again for strengthening treatment after the steam curing is finished, and obtaining the low-shrinkage TRC recycled aggregate concrete block.

In a further improvement, the slurry raw material in the step 3 comprises the following components in percentage by weight: 50% of recycled aggregate, 20% of cement, 10% of lime, 10% of anhydrite, 8% of aluminum powder and 2% of foaming agent.

In a further improvement, the particle size of the recycled aggregate sieved in the step 1 is 1-20 mm.

In a further improvement, the foaming agent is sodium dodecyl sulfate or sodium alkyl benzene sulfonate.

The invention fully utilizes waste resources by using waste concrete, waste bricks and waste sand ash in the construction site as raw materials, thereby realizing the purposes of energy conservation, emission reduction and environmental protection; the weight reducing grooves are formed in the building block body, and the reinforcing plates are arranged in the weight reducing grooves, so that the weight of the building block body is reduced, the structural strength of the building block body is guaranteed, and light-weight assembly is facilitated; the building block body is internally provided with the woven mesh, the woven mesh is woven by reinforcing fibers through a plain weave method, and the building block body is cast with the building block body in the process, so that the structural strength of the building block body is increased, carbon strengthening treatment is performed on the recycled aggregate in the machining process, the strength of the recycled aggregate is improved, carbon strengthening is performed on the recycled aggregate after the building is simultaneously carried out, the low contractility of the building block is realized, and the expansion with heat and the contraction with cold are effectively avoided.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.