CN108951893B - Shear wall horizontal construction joint rough surface reserved forming construction process - Google Patents
Shear wall horizontal construction joint rough surface reserved forming construction process Download PDFInfo
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- CN108951893B CN108951893B CN201811013805.4A CN201811013805A CN108951893B CN 108951893 B CN108951893 B CN 108951893B CN 201811013805 A CN201811013805 A CN 201811013805A CN 108951893 B CN108951893 B CN 108951893B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
Abstract
The invention discloses a shear wall horizontal construction joint rough surface reserved forming construction process, which is applied to the field of construction joint construction and solves the technical problem that construction joints waste a large amount of manpower, resources and the like in the construction process, and the key point of the technical scheme is as follows: (1) firstly, pouring common concrete; (2) then pouring the same-grade concrete mixed with the exposed aggregate water lotion; (3) before the initial setting of the common concrete, paving coarse aggregate; (4) removing the mold, and washing the upper surface of the concrete by using clear water to expose the rough surface of the original grading texture of the concrete; (5) paving an interface agent, and then pouring structural concrete; utilize the slow setting principle to make the equal grade concrete setting speed of construction joint section be slower than ordinary concrete, wash out construction joint section surface cement thick liquid and expose coarse aggregate and form the mat surface for direct pouring construction need not the chisel hair on equal grade concrete, avoids artifical cutting, practices thrift the manual work, can not produce pollution such as noise, dust simultaneously.
Description
Technical Field
The invention relates to shear wall construction, in particular to a shear wall horizontal construction joint rough surface reserved forming construction process.
Background
The shear wall is mainly a wall body for bearing load and resisting shock, is also called as a wind resisting wall or a shock resisting wall and a structural wall and is mainly divided into a plane shear wall and a cylinder shear wall. The plane shear wall is used in a reinforced concrete frame structure, a riser structure and a flat slab system and has the function of improving the rigidity, the strength and the collapse resistance of the structure; the cylindrical shear wall is used in high-rise buildings, high-rise structures and suspension structures.
At present, a chinese patent with an authorization publication number of CN102322146B in the existing patent discloses a method for treating a construction joint of a building, in particular to a method for treating a construction joint of a connecting beam of a shear wall structure, which comprises the steps of binding a shear wall and the connecting beam by using reinforcing steel bars, and further comprises the following steps: the construction method comprises the following steps of steel wire mesh intercepting construction at the construction joint of the connecting beam, wall concrete pouring, control line construction, construction joint cutting construction, sealing strip pasting, beam template erecting construction, template reinforcing construction, floor concrete pouring construction and template dismantling construction, the construction quality of the construction joint is effectively controlled, and the quality problem of secondary treatment caused by improper detail treatment at the construction joint during later-period decoration construction is avoided.
However, in most construction joints in the prior art, several methods such as roughening the surface of a foundation, washing out leaked aggregates with high-pressure water or arranging inserted bars in a quincunx shape with short reinforcing steel bars are mainly adopted, but the method is influenced by many factors such as fields, spaces and conditions, the roughening of the surface foundation is time-consuming and labor-consuming, and the washing with high-pressure water is mainly used for surface treatment of prefabricated parts in factories, so that resource and labor waste is caused.
Disclosure of Invention
The invention aims to provide a shear wall horizontal construction joint rough surface reserved forming construction process, which avoids manual excavation, saves labor and materials and is convenient to construct and operate.
The technical purpose of the invention is realized by the following technical scheme:
a shear wall horizontal construction joint rough surface reserved forming construction process comprises the following steps:
(1) erecting a formwork on the peripheral wall of the shear wall, and pouring common concrete to a designed height;
(2) then pouring the same-grade concrete mixed with the exposed aggregate water lotion;
(3) paving coarse aggregate on the upper surface of the same-grade concrete before the initial setting of the common concrete in the step (1);
(4) after the concrete reaches a certain strength, removing the mold and washing the upper surface of the concrete with clear water to expose the rough surface of the original grading texture of the concrete;
(5) after the concrete reaches the designed strength, a layer of interface agent is paved on the surface of the same-grade concrete, and then the structural concrete is poured.
Through adopting above-mentioned technical scheme, after shear force wall hypomere ordinary concrete pouring to appointed height, pour the same grade concrete that 10cm thick thoughtlessly has exposed aggregate water lotion in the position of staying to establish the construction joint, utilize the slow setting principle to make the same grade concrete setting speed of construction joint section be slower than ordinary concrete, wash off construction joint section surface grout and expose coarse aggregate and form the rough surface, make direct pouring construction need not the chisel hair on same grade concrete, avoid artifical cutting, practice thrift artifically, can not produce the noise simultaneously, pollutes such as dust.
The invention is further configured to: before pouring the same-grade concrete mixed with the exposed aggregate water lotion in the step (2), the compressive strength of the common concrete needs to reach more than 1.2 MPa.
By adopting the technical scheme, before the same-grade concrete is poured again, the common concrete is partially hardened, the compressive strength of the common concrete is limited to reach more than 1.2MPa, and after the compressive strength is reached, the same-grade concrete is poured again, so that the bearing of the upper same-grade concrete is facilitated.
The invention is further configured to: and (3) paving the stone-reducing concrete with the thickness of 50-100 mm in advance after the supporting in the step (1) is finished.
By adopting the technical scheme, compared with the original design mix proportion, the weight of stones is reduced, and the stone-reducing concrete with the thickness of 50-100 mm is beneficial to ensuring the combination tightness of new and old concrete; meanwhile, the cushion performance of the pouring layer can be improved.
The invention is further configured to: and (3) paving the same-grade concrete in the step (2) to the thickness of 8-12 cm.
By adopting the technical scheme, because the setting time of the common concrete and the concrete mixed with the exposed aggregate water lotion in the same grade are different, the thickness of the concrete in the same grade is preferably 8-12 cm, and the required construction joint can be formed between the common concrete and the concrete mixed with the exposed aggregate water lotion in the same grade.
The invention is further configured to: the bone exposing water lotion comprises the following components in parts by weight: 10-20 parts of sodium methylsiliconate, 5-10 parts of industrial aluminum sulfate, 10-20 parts of a non-ionic penetrating agent, 5-10 parts of fatty alcohol-polyoxyethylene ether and 60-70 parts of water.
By adopting the technical scheme, the sodium methyl silanol is a single-component curing type high-molecular waterproof agent material, the main component is methyl silicate, methyl silanol is generated under the action of water and carbon dioxide, the methyl silanol contributes to a chemical reaction with a building material to generate an insoluble reticular organic silicon resin film, and the waterproof, anti-seepage, moistureproof, anti-aging, anti-pollution and air permeability are excellent; industrial aluminum sulfate is white crystal, is easy to absorb moisture and agglomerate after being stored in the air for a long time, is easy to dissolve in water, and is difficult to dissolve in alcohol when the water solution is acidic; mainly used as a papermaking sizing agent and a flocculating agent for drinking water, industrial water and wastewater treatment, and also used as a raw material for producing artificial gems and other aluminum salts, such as ammonia alum, potassium alum and refined aluminum sulfate; in addition, aluminum sulfate is also widely used for high-quality clarifying agents, petroleum deodorizing and decoloring agents, concrete waterproofing agents, high-grade paper white forging, titanium dioxide post-film treatment and catalyst carrier production, and the invention is beneficial to enhancing the quick-setting effect of the powder curing agent; one of fatty alcohol-polyoxyethylene ether is white oily substance at normal temperature, is easy to dissolve in oil and organic solvent, can be dispersed in water, and has excellent emulsifying property; can be used as effective component of oil agent for synthetic fiber industry, and can be used as solubilizer and water defoaming agent in other industries; the non-ionic penetrant is a liquid material with extremely strong permeability, has good adhesive force, quick drying, strong wear resistance, and simultaneously has good chemical resistance and water resistance; according to the application, the methyl silanol sodium, the industrial aluminum sulfate, the non-ionic penetrant, the fatty alcohol-polyoxyethylene ether and water are stirred and mixed to prepare the bone exposing material water lotion which has excellent detergency, penetrability and adhesive force.
The invention is further configured to: the non-ionic penetrant is at least one of JFC-E, JFC-2.
By adopting the technical scheme, the JFC-E and JFC-2 type penetrant has stronger penetrability, can still be firmly attached to the surface of concrete for concrete building materials with larger surface roughness, and is widely applied in the field of building materials.
The invention is further configured to: the fatty alcohol-polyoxyethylene ether is AEO-3 or AEO-9.
By adopting the technical scheme, AEO-3 and AEO-9 are both fatty alcohol polyoxyethylene ether, are white oily substances at normal temperature, are easy to dissolve in oil and organic solvents, can be dispersed in water, and have excellent emulsifying property; can be used as effective component of oil agent for synthetic fiber industry, and can be used as solubilizer and water defoaming agent in other industries; in the present application, AEO-3 and AEO-9 can increase the compatibility of the components in the system and also facilitate the improved penetration of the exposed aggregate water lotion into the concrete material.
The invention is further configured to: the interface agent comprises the following components in parts by weight: 30-40 parts of high-strength portland cement, 10-15 parts of cement clinker powder, 5-10 parts of diatomite slurry, 10-20 parts of slack wax resin and 5-10 parts of silica gel binder.
By adopting the technical scheme, the cement clinker powder mainly comprises four oxides of calcium oxide, silicon oxide, aluminum oxide and ferric oxide, and also contains a small amount of modern production portland cement clinker such as magnesium oxide, sulfur trioxide, titanium oxide, phosphorus oxide and alkali, and is used as an additive to prepare a powder curing agent, so that the strength of the powder curing agent is greatly improved, the cost can be reduced, and the energy consumption is saved; the nano aerogel is one of extremely important superfine inorganic new materials, has specific properties in the aspects of small particle size, large surface area, strong surface adsorption force, large surface energy, high chemical purity, good dispersion performance, thermal resistance, resistance and the like, has unique characteristics in various subjects and fields by virtue of excellent stability, reinforcement, thickening and thixotropy, has an irreplaceable effect, and is widely applied to various industries as an additive, a catalyst carrier, petrochemical engineering, a decolorant, a delustering agent, a rubber reinforcement agent, a plastic filling agent, an ink thickening agent, a metal soft polishing agent, an insulating and heat-insulating filling agent, an advanced daily cosmetic filling agent, a spraying material, medicine, environmental protection and other fields, and in the invention, the nano aerogel enables a powder curing agent to have excellent high strength; the diatomite slurry has excellent elasticity, higher impact strength, tensile strength and tearing strength, light and soft body and high fineness, and after the diatomite slurry is added, the surface of a coating is smooth, light in weight and good in strength, and the expansion deformation caused by humidity change is reduced; the rosin resin has the advantages of rosin and paraffin, has higher softening point, high viscosity and excellent oxidation resistance, is completely resistant to crystallization in a liquid state or a solution, is added into a bonding material system, contributes to increasing the viscosity, hardness and water resistance of the system, and can change the cohesive property of the bonding material system; the paraffin is used as a latent heat energy storage material, has the advantages of large phase change latent heat, small volume change in the solid-liquid phase change process, good thermal stability, no supercooling phenomenon and low price; the turpentine resin obviously improves the viscosity, hardness, high and low temperature resistance, thermal stability and oxidation resistance of a bonding system; the silica gel adhesive has strong adhesion, high temperature resistance, good weather resistance and compatibility with building materials.
In conclusion, the invention has the following beneficial effects:
1. concrete mixed with exposed aggregate water lotion with the thickness of 10cm is poured at the position of the reserved construction joint, the delayed coagulation effect of the exposed aggregate water lotion is utilized, and clear water is adopted to wash the surface of the concrete to expose the rough surface of the concrete, so that manual excavation is avoided, labor is saved, meanwhile, pollution such as noise, dust and the like is not generated, and the environment is protected;
2. the coarse aggregate is inserted into the upper surface of the same-grade concrete before the initial setting of the common concrete, the construction operation is convenient, the concrete coarse aggregate and the concrete fine aggregate at the butt joint stub part are uniformly distributed and matched, and the structure quality can be ensured;
3. the continuous construction of the main body shear wall can be realized, and the construction efficiency is improved.
Detailed Description
The present invention will be described in further detail with reference to examples.
The first embodiment is as follows:
a shear wall horizontal construction joint rough surface reserved forming construction process comprises the following steps:
(1) the method comprises the following steps of (1) erecting a formwork on the peripheral wall of the shear wall, firstly paving gravel concrete with the same mixing ratio, paving the gravel concrete with the thickness of 50-100 mm, pouring common concrete on the gravel concrete to the designed height, vibrating by using a vibrating rod for one time, pouring the common concrete in layers, wherein the thickness of the concrete poured on each layer is 500mm, the inserting points of the vibrating rod are uniform, and the concrete in the lower layer is not less than 50mm when the concrete in each layer is vibrated;
(2) adding the exposed aggregate water lotion into the same-grade concrete, uniformly stirring, pouring the same-grade concrete mixed with the exposed aggregate water lotion on the common concrete after the compressive strength of the common concrete reaches 1.2MPa, pouring the concrete with the thickness of 10cm, and carefully treating and leveling the vibrated thickness;
(3) before the initial setting of the common concrete in the step (1), paving coarse aggregates on the upper surface of the same-grade concrete, controlling the depth of the coarse aggregates inserted into the concrete to be 1/2-2/3 of the diameter of the aggregates or the long sides of the aggregates, and performing the insertion of the coarse aggregates 1-2 h after the concrete pouring or simultaneously performing the concrete pouring;
(4) after the concrete reaches 4MPa, removing the mold and washing the upper surface of the concrete with clear water, and exposing the rough surface of the original grading texture of the concrete by utilizing the delayed coagulation effect of the exposed aggregate water washing agent;
(5) after the concrete reaches the designed strength, a layer of interface agent is paved on the surface of the same-grade concrete, and then the structural concrete is poured.
Example two:
a bone exposing water lotion is prepared by the following method:
(1) weighing 10 parts of sodium methylsiliconate, 5 parts of industrial aluminum sulfate, 10 parts of a non-ionic penetrant, 5 parts of fatty alcohol-polyoxyethylene ether and 60 parts of water according to parts by weight;
(2) firstly, putting industrial aluminum sulfate and water into a stirrer at the rotating speed of 300r/min, and uniformly stirring to obtain a mixture;
(3) and adding sodium methylsiliconate, a non-ionic penetrant and fatty alcohol-polyoxyethylene ether into the mixture, and uniformly stirring again to obtain the water-washing agent.
Example three:
a bone exposing water lotion is prepared by the following method:
(1) weighing 12 parts of sodium methylsiliconate, 6 parts of industrial aluminum sulfate, 12 parts of a non-ionic penetrant, 6 parts of fatty alcohol-polyoxyethylene ether and 62 parts of water according to parts by weight;
(2) firstly, putting industrial aluminum sulfate and water into a stirrer at the rotating speed of 320r/min, and uniformly stirring to obtain a mixture;
(3) and adding sodium methylsiliconate, a non-ionic penetrant and fatty alcohol-polyoxyethylene ether into the mixture, and uniformly stirring again to obtain the water-washing agent.
Example four:
a bone exposing water lotion is prepared by the following method:
(1) weighing 15 parts of sodium methyl silanol, 7 parts of industrial aluminum sulfate, 15 parts of a non-ionic penetrant, 8 parts of fatty alcohol-polyoxyethylene ether and 65 parts of water according to parts by weight;
(2) firstly, putting industrial aluminum sulfate and water into a stirrer at the rotating speed of 330r/min, and uniformly stirring to obtain a mixture;
(3) and adding sodium methylsiliconate, a non-ionic penetrant and fatty alcohol-polyoxyethylene ether into the mixture, and uniformly stirring again to obtain the water-washing agent.
Example five:
a bone exposing water lotion is prepared by the following method:
(1) weighing 18 parts of sodium methylsiliconate, 8 parts of industrial aluminum sulfate, 18 parts of a non-ionic penetrant, 8 parts of fatty alcohol-polyoxyethylene ether and 68 parts of water according to parts by weight;
(2) firstly, putting industrial aluminum sulfate and water into a stirrer at the rotating speed of 330r/min, and uniformly stirring to obtain a mixture;
(3) and adding sodium methylsiliconate, a non-ionic penetrant and fatty alcohol-polyoxyethylene ether into the mixture, and uniformly stirring again to obtain the water-washing agent.
Example six:
a bone exposing water lotion is prepared by the following method:
(1) weighing 20 parts of sodium methyl silanol, 10 parts of industrial aluminum sulfate, 20 parts of a non-ionic penetrant, 10 parts of fatty alcohol-polyoxyethylene ether and 70 parts of water according to parts by weight;
(2) firstly, putting industrial aluminum sulfate and water into a stirrer at the rotating speed of 320r/min, and uniformly stirring to obtain a mixture;
(3) and adding sodium methylsiliconate, a non-ionic penetrant and fatty alcohol-polyoxyethylene ether into the mixture, and uniformly stirring again to obtain the water-washing agent.
Example seven:
an interface agent is prepared by the following method:
(1) preparing materials: weighing 30 parts of high-strength portland cement, 10 parts of cement clinker powder, 5 parts of diatomite slurry, 10 parts of slack wax resin and 5 parts of silica gel binder in parts by weight;
(2) adding high-strength portland cement, slack wax resin and a silica gel binder into a stirrer, adjusting the rotating speed to 600r/min, and uniformly stirring at a high speed to obtain a mixture;
(3) adding cement clinker powder and diatomite slurry into the mixture, adjusting the rotating speed to 360r/min, and uniformly stirring again to obtain the interface agent.
Example eight:
an interface agent is prepared by the following method:
(1) preparing materials: weighing 32 parts of high-strength portland cement, 11 parts of cement clinker powder, 5 parts of diatomite slurry, 12 parts of slack wax resin and 5 parts of silica gel binder in parts by weight;
(2) adding high-strength portland cement, slack wax resin and a silica gel binder into a stirrer, adjusting the rotating speed to 600r/min, and uniformly stirring at a high speed to obtain a mixture;
(3) adding cement clinker powder and diatomite slurry into the mixture, adjusting the rotating speed to 360r/min, and uniformly stirring again to obtain the interface agent.
Example nine:
an interface agent is prepared by the following method:
(1) preparing materials: weighing 35 parts of high-strength portland cement, 12 parts of cement clinker powder, 8 parts of diatomite slurry, 15 parts of slack wax resin and 8 parts of silica gel binder in parts by weight;
(2) adding high-strength portland cement, slack wax resin and a silica gel binder into a stirrer, adjusting the rotating speed to 600r/min, and uniformly stirring at a high speed to obtain a mixture;
(3) adding cement clinker powder and diatomite slurry into the mixture, adjusting the rotating speed to 360r/min, and uniformly stirring again to obtain the interface agent.
Example ten:
an interface agent is prepared by the following method:
(1) preparing materials: weighing 38 parts of high-strength portland cement, 15 parts of cement clinker powder, 8 parts of diatomite slurry, 18 parts of slack wax resin and 8 parts of silica gel binder in parts by weight;
(2) adding high-strength portland cement, slack wax resin and a silica gel binder into a stirrer, adjusting the rotating speed to 600r/min, and uniformly stirring at a high speed to obtain a mixture;
(3) adding cement clinker powder and diatomite slurry into the mixture, adjusting the rotating speed to 360r/min, and uniformly stirring again to obtain the interface agent.
Example eleven:
an interface agent is prepared by the following method:
(1) preparing materials: weighing 40 parts of high-strength portland cement, 15 parts of cement clinker powder, 10 parts of diatomite slurry, 20 parts of slack wax resin and 10 parts of silica gel binder in parts by weight;
(2) adding high-strength portland cement, slack wax resin and a silica gel binder into a stirrer, adjusting the rotating speed to 600r/min, and uniformly stirring at a high speed to obtain a mixture;
(3) adding cement clinker powder and diatomite slurry into the mixture, adjusting the rotating speed to 360r/min, and uniformly stirring again to obtain the interface agent.
The detection means is as follows:
(1) the concrete with the same grade is formed by mixing the exposed aggregate water lotion prepared in the second to sixth embodiments with common concrete according to the same proportion, and the compressive strength of the concrete with the same grade and the common concrete under the same setting time is detected.
The results of the measurements of the compressive strength are shown in the following table:
| sample (I) | 2h(MPa) | 10h(MPa) | 24h(MPa) |
| Example two | 0.6 | 2.1 | 4 |
| EXAMPLE III | 0.6 | 2.2 | 4 |
| Example four | 0.5 | 2.1 | 4 |
| EXAMPLE five | 0.4 | 2.0 | 4 |
| EXAMPLE six | 0.5 | 2.1 | 4 |
| Ordinary concrete | 1 | 4.5 | 10 |
As can be seen from the above table, the concrete related to the example has smaller compressive strength compared with the common concrete under the same setting time condition, and the concrete of the example blended with the exposed aggregate water lotion has better retardation.
(2) Paving the interface agent prepared in the seventh to eleventh embodiments on the same-grade concrete, and then paving a structural concrete layer; the compressive strength of each sample at 24h was compared to that of a structural concrete layer laid directly on the same grade of concrete.
The test results of the compressive strength of the paved interface agent and the unpaved interface agent are shown in the following table:
| sample (I) | Compressive strength (MPa) |
| EXAMPLE seven | 14.2 |
| Example eight | 14.1 |
| Example nine | 14.0 |
| Example ten | 14.2 |
| EXAMPLE eleven | 14.1 |
| Non-paved interface agent | 10.3 |
According to the table, the compressive strength of the surface of the concrete is higher when the structural concrete with the interface agent is paved, which shows that the interface agent has better compatibility between the same-grade concrete and the structural concrete, the combining capability of the interface agent and the structural concrete is improved, and the compressive strength of the surface of the structural concrete layer is further improved.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (5)
1. A shear wall horizontal construction joint rough surface reserved forming construction process is characterized by comprising the following steps:
(1) erecting a formwork on the peripheral wall of the shear wall, and pouring common concrete to a designed height;
(2) then pouring the same-grade concrete mixed with the exposed aggregate water lotion;
(3) paving coarse aggregate on the upper surface of the same-grade concrete before the initial setting of the common concrete in the step (1);
(4) after the concrete reaches a certain strength, removing the mold and washing the upper surface of the concrete with clear water to expose the rough surface of the original grading texture of the concrete;
(5) after the concrete reaches the design strength, paving a layer of interface agent on the surface of the same-grade concrete, and then pouring the structural concrete;
the bone exposing water lotion comprises the following components in parts by weight: 10-20 parts of sodium methylsiliconate, 5-10 parts of industrial aluminum sulfate, 10-20 parts of a non-ionic penetrating agent, 5-10 parts of fatty alcohol-polyoxyethylene ether and 60-70 parts of water; the non-ionic penetrant is at least one of JFC-E, JFC-2; the fatty alcohol-polyoxyethylene ether is AEO-3 or AEO-9.
2. The shear wall horizontal construction joint rough surface reserved forming construction process according to claim 1, characterized in that: before pouring the same-grade concrete mixed with the exposed aggregate water lotion in the step (2), the compressive strength of the common concrete needs to reach more than 1.2 MPa.
3. The shear wall horizontal construction joint rough surface reserved forming construction process according to claim 1, characterized in that: and (3) paving the stone-reducing concrete with the thickness of 50-100 mm in advance after the supporting in the step (1) is finished.
4. The shear wall horizontal construction joint rough surface reserved forming construction process according to claim 1, characterized in that: and (3) paving the same-grade concrete in the step (2) to the thickness of 8-12 cm.
5. The shear wall horizontal construction joint rough surface reserved forming construction process according to claim 1, characterized in that the interface agent comprises the following components in parts by weight: 30-40 parts of high-strength portland cement, 10-15 parts of cement clinker powder, 5-10 parts of diatomite slurry, 10-20 parts of slack wax resin and 5-10 parts of silica gel binder.
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| CN109556568A (en) * | 2018-12-08 | 2019-04-02 | 江苏宇翔建设发展集团有限公司 | A kind of simulation mapping method based on municipal works |
| CN110578321B (en) * | 2019-09-20 | 2021-01-26 | 四川省水利科学研究院 | Construction method for soft rock aggregate cemented dam construction cold joint connection compensation |
| CN115073209B (en) * | 2022-07-21 | 2023-06-16 | 广州市克来斯特建材科技有限公司 | Roughening agent and preparation method and application thereof |
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| CN100425566C (en) * | 2007-05-24 | 2008-10-15 | 济南大学 | Cement-base concrete interface agent |
| JP6249628B2 (en) * | 2013-04-22 | 2017-12-20 | 株式会社ガイアート | Aggregate exposure method in concrete pavement |
| CN104211440B (en) * | 2014-09-10 | 2017-07-18 | 江苏名和集团有限公司 | A kind of preparation method for revealing aggregate concrete and its undisguised material rinsing agent used |
| CN105084937A (en) * | 2015-08-03 | 2015-11-25 | 华东交通大学 | Washing exposed aggregate concrete washing agent |
| CN106012746A (en) * | 2016-07-08 | 2016-10-12 | 山东大山路桥工程有限公司 | Surface treatment method for achieving low noise and skid resistance of road |
| CN106631155B (en) * | 2016-12-29 | 2019-08-16 | 中民筑友科技投资有限公司 | Concrete coagulant and its preparation method and application |
| CN207480862U (en) * | 2017-11-06 | 2018-06-12 | 广东建远建筑装配工业有限公司 | A kind of prefabricated components production concrete rough surface processing unit |
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