CN114412127B - Construction method of anti-explosion terrace - Google Patents
Construction method of anti-explosion terrace Download PDFInfo
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- CN114412127B CN114412127B CN202210063545.1A CN202210063545A CN114412127B CN 114412127 B CN114412127 B CN 114412127B CN 202210063545 A CN202210063545 A CN 202210063545A CN 114412127 B CN114412127 B CN 114412127B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
- E04F15/181—Insulating layers integrally formed with the flooring or the flooring elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/20—Implements for finishing work on buildings for laying flooring
- E04F21/24—Implements for finishing work on buildings for laying flooring of masses made in situ, e.g. smoothing tools
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Engineering & Computer Science (AREA)
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
- Road Paving Structures (AREA)
- Road Repair (AREA)
Abstract
The invention discloses a construction method of an antiknock terrace, which comprises the following steps: 1) Paving a terrace; 2) Curing; 3) Removing the template and setting a separation seam; 4) Extending and cutting the construction of the seam; 5) And (5) treating the separation joint and the expansion joint. The construction method of the anti-explosion terrace provided by the invention has definite requirements on construction procedures, time nodes, material consumption, light receiving standards and key points. The floor finished by the construction method is an anti-explosion floor with static electricity resistance, no ignition, A1 grade combustion grade, wear resistance, impact resistance and durable and stable performance. The construction method is environment-friendly, pollution-free and synchronous with concrete, so that the surface layer material of the explosion-proof ground and the base concrete are integrated, and the purposes of no maintenance for life and lasting and stable performance are achieved on the premise of meeting the functions of the explosion-proof terrace.
Description
[ field of technology ]
The invention relates to the technical field of terrace construction, in particular to a construction method of an anti-explosion terrace.
[ background Art ]
The floor material for floor construction has very strict requirements on special fire and explosion prevention requirements, and the floor material must have the explosion prevention characteristic of no sparks, namely, when metal and other hard objects collide and rub with the floor material, no sparks (or sparks) can occur, so that fire and explosion accidents can be avoided.
The anti-explosion terrace construction in the current market mainly has the following problems: 1. harmful substances such as formaldehyde, toluene and the like are released during construction, so that the environment is polluted; 2. most of the anti-static anti-explosion composite material has an anti-static function, has a low fireproof grade, and cannot meet the anti-explosion requirements of the market; 3. the anti-static non-ignition function can be attenuated along with the time, and generally, the anti-static non-ignition function is not provided after 2-3 years, and the non-ignition function is not provided; 4. The cost is high.
Therefore, in flammable and explosive places, in order to inhibit the generation of an explosion ignition source from the angle of the ground and reduce the flammable and explosive accidents, a safe and efficient anti-riot terrace construction method is needed.
[ invention ]
The invention provides a construction method which is safe and reliable and meets the requirements of an explosion-proof terrace in order to overcome the problems in the prior art.
The invention relates to a construction method of an explosion-proof terrace, which comprises the following steps:
1) Terrace laying
1.1. Polishing an original concrete base surface, and cleaning sundries such as dust;
1.2, support templates
According to the size of the field area and the construction amount of the day, carrying out template support on the area needing to be constructed by taking a column net as a unit;
1.3, paving a single-layer phi 6 steel bar net sheet @150 multiplied by 150 on the original concrete, wherein the distance from the single-layer phi 6 steel bar net sheet to the surface of the original concrete is 5-10mm, and fixing the single-layer phi 6 steel bar net sheet on the surface of the original concrete by steel nails, wherein the number of steel nails is 5-10 per square meter;
the aim of paving the reinforcing steel bar meshes is to prevent phenomena of displacement, cracking, hollowing and the like when the newly constructed C25 concrete is solidified, the label of the concrete is required to be not lower than C25, when the thickness of the concrete is more than or equal to 150mm, a single-layer reinforcing steel bar mesh is changed into a double-layer reinforcing steel bar mesh, meanwhile, the reinforcing steel bar arrangement rate is calculated additionally according to the increase of the ground load value, and the label of the reinforcing steel bar is adjusted;
1.4, paving C25 concrete with the thickness of 50-350mm, and spreading an antiknock terrace material with the thickness of 2-3 mm on the surface of the concrete in the initial setting stage, wherein the concrete method comprises the following steps of:
the most suitable construction temperature of the concrete is 5-25 ℃, commercial concrete with the mark of more than C25 is adopted, the concrete is transported to a construction site by a concrete tank truck, the concrete is continuously vibrated in the paving process, and the flatness is controlled within 2m and the error is controlled within 3 mm;
when the concrete is in an initial setting state after 4-6 hours after being paved, namely 75Kg of heavy adults are stepped on the concrete by feet, the depth of the sinking foot marks is 5-6 mm, the surfaces of the concrete are smeared and pressed by a troweling machine reel, the longitudinal and transverse trowels and presses are respectively carried out for one time, the base concrete is troweled and compacted, meanwhile, the base concrete is lifted, and the antiknock terrace material is paved for two times;
uniformly spreading 2/3 of the total amount of the antiknock material for the first time, compacting Mao Laihui by using a polishing disc, troweling for multiple times, performing cooperation construction on the fine corners by using a manual trowel, performing secondary spreading of the antiknock material after finishing all compacting and troweling of the construction surface, spreading 1/3 of the total amount of the antiknock material for the second time, wherein the spreading direction is perpendicular to the first time, and compacting the trowels by using the polishing disc for longitudinal and transverse staggered operation, at least for more than two times; the troweling machine is used for calendaring the blade to perform troweling for 3-4 times in a staged and longitudinal and transverse staggered operation until the surface is fine and smooth and bright;
2) Curing
After the ground is paved and constructed for 12 hours, sprinkling water or covering a plastic film for maintenance, wherein the surface layer is required to be kept moist for 7-14 days;
3) Removing template and setting separation seam
The die unloading operation is carried out 24 hours after finishing the surface layer of the anti-explosion terrace material, the edge of the terrace is not damaged when the die unloading operation is carried out, and the edge is required to be cut into a straight line after the die unloading operation in order to ensure the straightness of the construction joint; the parting line cutting is required to be carried out within 48 hours after 24 hours after finishing the surface layer of the antiknock terrace material.
4) Construction of expansion joints
Cutting by a concrete cutting machine within 48 hours after the antiknock terrace material is finished for 24 hours, and according to the specification of 4.5m multiplied by 4.5m or the specification of 6m multiplied by 6m or the specification of 8m multiplied by 8m, the width of the seam is 3-5 mm, and the depth of the seam is 1/3 of the thickness of the concrete, so that the steel bar is not cut off.
5) Treatment of separation and expansion joints
5.1, when no other requirements exist, the gap between the seams is 6m, the width of the seam is 5mm, and the depth is 1/3 of the thickness of the concrete, so that the steel bars are not cut off;
5.2, filling the cutting seam with polyphenyl foam bars, and sealing with elastic glue;
5.3, cutting the seam to be more than 15CM from the wall root, the column root and other components;
and 5.4, ensuring that the depth of the cutting saw reaches the cutting depth from shallow to deep when the cutting saw is used for cutting and lifting.
Further, the antiknock terrace was prepared by the method of example 1 in CN 104694814B.
Compared with the prior art, the invention has the advantages that:
the ground constructed by the construction method can have the functions of static electricity prevention, no ignition, fire-proof grade A1, wear resistance, impact resistance and lasting and stable performance, so that the wear resistance and impact resistance of the concrete surface are obviously improved, and the compression resistance, fracture resistance, tensile resistance and impact resistance are enhanced; the construction and maintenance are very convenient, the engineering use durability is good, no dust is generated, the indoor environment of the industrial house is greatly improved, the market demand is met, and the defect that the ground is periodically and frequently stopped in flammable and explosive places to renew the ground is avoided; saving the renovation and reconstruction cost for enterprises and avoiding the economic benefit caused by production stopping.
Detailed Description
The principles and features of the present invention are described below with examples given for the purpose of illustration only and are not intended to limit the scope of the invention.
Example 1: the invention relates to preparation of an antiknock terrace
The antiknock terrace was prepared by the method of example 1 in CN104694814B, and was packed with double-layered plastic bags, 25 kg per bag. In order to spread evenly, the spreading is required to be carried out twice. The spreading amount is calculated by the technician according to the use condition and the area of the sub-bin, and the use amount must be ensured.
Example 2: the invention relates to a construction method 1 of an antiknock terrace
The concrete construction steps are as follows:
1) Terrace laying
1.1. Polishing an original concrete base surface, and cleaning sundries such as dust;
1.2, support templates
According to the size of the field area and the construction amount of the day, carrying out template support on the area needing to be constructed by taking a column net as a unit;
1.3, paving a single-layer phi 6 steel bar net sheet @150×150 on the original concrete, keeping a distance of 5mm from the surface of the original concrete, and fixing the steel nails on the surface of the original concrete, wherein the number of steel nails is 5 per square meter;
the mesh laying purpose is to prevent the phenomenon of displacement, cracking, hollowing and the like when the newly constructed C25 concrete is solidified. The label of the concrete is required to be not lower than C25, when the thickness of the original concrete is not less than 150mm, a single-layer reinforcing steel bar net sheet is changed into a double-layer reinforcing steel bar net sheet, and meanwhile, the label of the reinforcing steel bar is correspondingly increased;
1.4, paving C25 concrete with the thickness of 50mm, and spreading an antiknock terrace material with the thickness of 2mm on the surface of the concrete in the initial setting stage, wherein the concrete method comprises the following steps:
the most suitable construction temperature of the concrete is 5 ℃, commercial concrete with the mark of more than C25 is adopted, the concrete is transported to a construction site by a concrete tank truck, the concrete is continuously vibrated in the paving process, and the flatness is controlled within 2m and the error is controlled within 3 mm;
when the concrete is in an initial setting state after 4 hours, namely 75Kg of heavy adults step on the concrete by feet, the depth of the sinking footprint is 5-6 mm, the surfaces of the concrete are smeared and pressed by a troweling machine reel, the longitudinal and transverse troweling and pressing are carried out for one time, the base concrete is troweled and compacted, the base concrete is simultaneously lifted, and the antiknock terrace material is paved for two times;
uniformly spreading 2/3 of the total amount of the antiknock material for the first time, compacting the setas by using a polishing disc, carrying out matched construction on fine corners by using a manual trowel, carrying out secondary spreading of the antiknock material when the whole compaction of the setas on a construction surface is completed, spreading 1/3 of the total amount of the antiknock material for the second time, wherein the spreading direction is perpendicular to the first time, and compacting the setas by using the polishing disc, wherein the longitudinal and transverse staggered operations are carried out at least for more than two times; the troweling machine is used for calendaring the blade to perform troweling for 3-4 times in a staged and longitudinal and transverse staggered operation until the surface is fine and smooth and bright;
2) Curing
After the ground is paved and constructed for 12 hours, sprinkling water or covering a plastic film for maintenance, wherein the surface layer is required to be kept moist for 7-14 days;
3) Removing template and setting separation seam
The die unloading operation is carried out 24 hours after finishing the surface layer of the anti-explosion terrace material, the edge of the terrace is not damaged when the die unloading operation is carried out, and the edge is required to be cut into a straight line after the die unloading operation in order to ensure the straightness of the construction joint; the parting line cutting is required to be carried out within 48 hours after 24 hours after finishing the surface layer of the antiknock terrace material.
4) Construction of expansion joints
And (3) cutting the anti-explosion terrace material by a concrete cutting machine within 48 hours after finishing the anti-explosion terrace material for 24 hours, wherein the width of the seam is 3mm according to the specification of 4.5m multiplied by 4.5m, and the depth of the seam is 1/3 of the thickness of the concrete, so that the steel bars are not cut off.
5) Treatment of separation and expansion joints
5.1, when no other requirements exist, the gap between the seams is 6m, the width of the seam is 5mm, and the depth is 1/3 of the thickness of the concrete, so that the steel bars are not cut off;
5.2, filling the cutting seam with polyphenyl foam bars, and sealing with elastic glue;
5.3, cutting the seam to be more than 15cm away from the wall root, the column root and other components;
and 5.4, ensuring that the depth of the cutting saw reaches the cutting depth from shallow to deep when the cutting saw is used for cutting and lifting.
Example 3: the invention relates to a construction method 2 of an antiknock terrace
The concrete construction steps are as follows:
1) Terrace laying
1.1. Polishing an original concrete base surface, and cleaning sundries such as dust;
1.2, support templates
According to the size of the field area and the construction amount of the day, carrying out template support on the area needing to be constructed by taking a column net as a unit;
1.3, paving a single-layer phi 6 steel bar net sheet @150×150 on the original concrete, keeping a distance of 10mm from the surface of the original concrete, and fixing the steel nails on the surface of the original concrete, wherein the number of steel nails is 10 per square meter;
the mesh laying purpose is to prevent the phenomenon of displacement, cracking, hollowing and the like when the newly constructed C25 concrete is solidified. The label of the concrete is required to be not lower than C25, when the thickness of the original concrete is not less than 150mm, a single-layer reinforcing steel bar net sheet is changed into a double-layer reinforcing steel bar net sheet, and meanwhile, the label of the reinforcing steel bar is correspondingly increased;
1.4, paving C25 concrete with the thickness of 350mm, spreading 3 mm-thick anti-explosion terrace material on the surface of the concrete in the initial setting stage, and trowelling the concrete at the same time, wherein the concrete method comprises the following steps:
the most suitable construction temperature of the concrete is 25 ℃, commercial concrete with the mark of more than C25 is adopted, the concrete is transported to a construction site by a concrete tank truck, the concrete is continuously vibrated in the paving process, and the flatness is controlled within 2m and the error is controlled within 3 mm;
when the concrete is in an initial setting state after 6 hours, namely 75Kg of heavy adults step on the concrete by feet, the depth of the sinking footprint is 5-6 mm, the surfaces of the concrete are smeared and pressed by a troweling machine reel, the longitudinal and transverse troweling and pressing are carried out for one time, the base concrete is troweled and compacted, the base concrete is simultaneously lifted, and the antiknock terrace material is paved for two times;
uniformly spreading 2/3 of the total amount of the antiknock material for the first time, compacting the setas by using a polishing disc, carrying out matched construction on fine corners by using a manual trowel, carrying out secondary spreading of the antiknock material when the whole compaction of the setas on a construction surface is completed, spreading 1/3 of the total amount of the antiknock material for the second time, wherein the spreading direction is perpendicular to the first time, and compacting the setas by using the polishing disc, wherein the longitudinal and transverse staggered operations are carried out at least for more than two times; the troweling machine is used for calendaring the blade for the operation of troweling in stages and longitudinally and transversely staggered for 4 times until the surface is fine and smooth and bright;
2) Curing
After the ground is paved and constructed for 12 hours, sprinkling water or covering a plastic film for maintenance, wherein the surface layer is required to be kept moist for 14 days;
3) Removing template and setting separation seam
The die unloading operation is carried out 24 hours after finishing the surface layer of the anti-explosion terrace material, the edge of the terrace is not damaged when the die unloading operation is carried out, and the edge is required to be cut into a straight line after the die unloading operation in order to ensure the straightness of the construction joint; the parting line cutting is required to be carried out within 48 hours after 24 hours after finishing the surface layer of the antiknock terrace material.
4) Construction of expansion joints
And (3) cutting the anti-explosion terrace material by adopting a concrete cutting machine within 48 hours after finishing the anti-explosion terrace material for 24 hours, wherein the width of the seam is 5mm according to the specification of 8m multiplied by 8m, and the depth of the seam is 1/3 of the thickness of the concrete, so that the steel bars are not cut off.
5) Treatment of separation and expansion joints
5.1, when no other requirements exist, the gap between the seams is 6m, the width of the seam is 5mm, and the depth is 1/3 of the thickness of the concrete, so that the steel bars are not cut off;
5.2, filling the cutting seam with polyphenyl foam bars, and sealing with elastic glue;
5.3, cutting the seam to be more than 15cm away from the wall root, the column root and other components;
and 5.4, ensuring that the depth of the cutting saw reaches the cutting depth from shallow to deep when the cutting saw is used for cutting and lifting.
Example 4: the invention relates to a construction method 3 of an antiknock terrace
The concrete construction steps are as follows:
1) Terrace laying
1.1. Polishing an original concrete base surface, and cleaning sundries such as dust;
1.2, support templates
According to the size of the field area and the construction amount of the day, carrying out template support on the area needing to be constructed by taking a column net as a unit;
1.3, paving a single-layer phi 6 steel bar net sheet @150×150 on the original concrete, wherein the distance from the single-layer phi 6 steel bar net sheet to the surface of the original concrete is 7mm, and fixing the single-layer phi 6 steel bar net sheet on the surface of the original concrete by steel nails, wherein the number of steel nails is 8 per square meter;
the mesh laying purpose is to prevent the phenomenon of displacement, cracking, hollowing and the like when the newly constructed C25 concrete is solidified. The label of the concrete is required to be not lower than C25, when the thickness of the original concrete is not less than 150mm, a single-layer reinforcing steel bar net sheet is changed into a double-layer reinforcing steel bar net sheet, and meanwhile, the label of the reinforcing steel bar is correspondingly increased;
1.4, paving C25 concrete with the thickness of 200mm, and spreading 3 mm-thick anti-explosion terrace material on the surface of the concrete in the initial setting stage, wherein the concrete method comprises the following steps:
the most suitable construction temperature of the concrete is 16 ℃, commercial concrete with the mark of more than C25 is adopted, the concrete is transported to a construction site by a concrete tank truck, the concrete is continuously vibrated in the paving process, and the flatness is controlled within 2m and the error is controlled within 3 mm;
when the concrete is in an initial setting state after 5 hours, namely 75Kg of heavy adults step on the concrete by feet, the depth of the sinking footprint is 5-6 mm, the surfaces of the concrete are smeared and pressed by a troweling machine reel, the longitudinal and transverse troweling and pressing are carried out for one time, the base concrete is troweled and compacted, the base concrete is simultaneously lifted, and the antiknock terrace material is paved for two times;
uniformly spreading 2/3 of the total amount of the antiknock material for the first time, compacting the setas by using a polishing disc, carrying out matched construction on fine corners by using a manual trowel, carrying out secondary spreading of the antiknock material when the whole compaction of the setas on a construction surface is completed, spreading 1/3 of the total amount of the antiknock material for the second time, wherein the spreading direction is perpendicular to the first time, and compacting the setas by using the polishing disc, wherein the longitudinal and transverse staggered operations are carried out at least for more than two times; the troweling machine is used for calendaring the blade to perform troweling for 3-4 times in a staged and longitudinal and transverse staggered operation until the surface is fine and smooth and bright;
2) Curing
After the ground is paved and constructed for 12 hours, sprinkling water or covering a plastic film for maintenance, wherein the surface layer is required to be kept moist for 7-14 days;
3) Removing template and setting separation seam
The die unloading operation is carried out 24 hours after finishing the surface layer of the anti-explosion terrace material, the edge of the terrace is not damaged when the die unloading operation is carried out, and the edge is required to be cut into a straight line after the die unloading operation in order to ensure the straightness of the construction joint; the parting line cutting is required to be carried out within 48 hours after 24 hours after finishing the surface layer of the antiknock terrace material.
4) Construction of expansion joints
And (3) cutting the anti-explosion terrace material by adopting a concrete cutting machine within 48 hours after finishing the anti-explosion terrace material for 24 hours, wherein the width of the seam is 4mm according to the specification of 6m multiplied by 6m, and the depth of the seam is 1/3 of the thickness of the concrete, so that the steel bars are not cut off.
5) Treatment of separation and expansion joints
5.1, when no other requirements exist, the gap between the seams is 6m, the width of the seam is 5mm, and the depth is 1/3 of the thickness of the concrete, so that the steel bars are not cut off;
5.2, filling the cutting seam with polyphenyl foam bars, and sealing with elastic glue;
5.3, cutting the seam to be more than 15cm away from the wall root, the column root and other components;
and 5.4, ensuring that the depth of the cutting saw reaches the cutting depth from shallow to deep when the cutting saw is used for cutting and lifting.
Application example 1:
the 1000 square meter ground in the initiating explosive device production engineering project of China aerospace science and technology 42 is sanded and hollowed after the ground is finished due to the construction technology of cement mortar and terrazzo. The problem of static electricity resistance attenuation and the like brings great trouble to the Chinese aerospace science and technology 42. After the construction method is adopted for construction, the ground has an antiknock function, and the problems existing before dust generation, sand generation and performance attenuation do not occur. The performance parameters and the characteristics of the anti-riot terrace are shown in the table I in detail.
Table one: floor performance characteristics after construction by the method
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (1)
1. The construction method of the antiknock terrace is characterized by comprising the following steps:
1) Terrace laying
1.1. Polishing an original concrete base surface, and cleaning sundries such as dust;
1.2, support templates
According to the size of the field area and the construction amount of the day, carrying out template support on the area needing to be constructed by taking a column net as a unit;
1.3, paving a single-layer phi 6 steel bar net sheet @150 multiplied by 150 on the original concrete, wherein the distance from the single-layer phi 6 steel bar net sheet to the surface of the original concrete is 5-10mm, and fixing the single-layer phi 6 steel bar net sheet on the surface of the original concrete by steel nails, wherein the number of steel nails is 5-10 per square meter;
1.4, paving C25 concrete with the thickness of 50-350mm, and spreading an antiknock terrace material with the thickness of 2-3 mm on the surface of the concrete in the initial setting stage, wherein the concrete method comprises the following steps of:
the most suitable construction temperature of the concrete is 5-25 ℃, commercial concrete with the mark of more than C25 is adopted, the concrete is transported to a construction site by a concrete tank truck, the concrete is continuously vibrated in the paving process, and the flatness is controlled within 2m and the error is controlled within 3 mm;
when the concrete is in an initial setting state after 4-6 hours after being paved, namely 75Kg of heavy adults are stepped on the concrete by feet, the depth of the sinking foot marks is 5-6 mm, the surfaces of the concrete are smeared and pressed by a trowelling machine, the longitudinal and transverse trowelling and compaction are carried out on the base concrete, the base concrete is simultaneously lifted, and the antiknock terrace material is paved twice;
uniformly spreading 2/3 of the total amount of the antiknock material for the first time, compacting the setas by using a polishing disc, carrying out matched construction on fine corners by using a manual trowel, carrying out secondary spreading of the antiknock material when the whole compaction of the setas on a construction surface is completed, spreading 1/3 of the total amount of the antiknock material for the second time, wherein the spreading direction is perpendicular to the first time, and compacting the setas by using the polishing disc, wherein the longitudinal and transverse staggered operations are carried out at least for more than two times; the troweling machine is used for calendaring the blade to perform troweling for 3-4 times in a staged and longitudinal and transverse staggered operation until the surface is fine and smooth and bright;
2) Curing
After the ground is paved and constructed for 12 hours, sprinkling water or covering a plastic film for maintenance, wherein the surface layer is required to be kept moist for 7-14 days;
3) Removing template and setting separation seam
The die unloading operation is carried out 24 hours after finishing the surface layer of the anti-explosion terrace material, the edge of the terrace is not damaged when the die unloading operation is carried out, and the edge is required to be cut into a straight line after the die unloading operation in order to ensure the straightness of the construction joint; the parting line cutting is required to be carried out within 24-48 hours after finishing the surface layer of the antiknock terrace material;
4) Construction of expansion joints
Cutting the anti-explosion terrace material by a concrete cutting machine within 48 hours after finishing the anti-explosion terrace material for 24 hours, and according to the specification of 4.5m multiplied by 4.5m or the specification of 6m multiplied by 6m or the specification of 8m multiplied by 8m, the seam width is 3-5 mm, and the seam depth is 1/3 of the thickness of the concrete, preferably, the steel bar is not cut off;
5) Treatment of separation and expansion joints
5.1, when no other requirements exist, the gap between the seams is 6m, the width of the seam is 5mm, and the depth is 1/3 of the thickness of the concrete, so that the steel bars are not cut off;
5.2, filling the cutting seam with polyphenyl foam bars, and sealing with elastic glue;
5.3, cutting the seam to be more than 15CM from the wall root, the column root and other components;
and 5.4, ensuring that the depth of the cutting saw reaches the cutting depth from shallow to deep when the cutting saw is used for cutting and lifting.
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| CN104694814A (en) * | 2015-01-26 | 2015-06-10 | 北京金科复合材料有限责任公司 | Anti-explosion terrace coating material and preparation method thereof |
| CN104894940A (en) * | 2015-05-22 | 2015-09-09 | 中交第四航务工程勘察设计院有限公司 | Construction method of wear-resisting terrace of RTG shunting lane steering zone |
| CN110607894A (en) * | 2019-08-12 | 2019-12-24 | 中国建筑第二工程局有限公司 | Construction method for floor of constructional engineering |
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| CN101307640A (en) * | 2008-07-12 | 2008-11-19 | 中冶京唐建设有限公司 | Garage abrasion-proof concrete pavement terrace crack control method |
| KR101134498B1 (en) * | 2011-09-19 | 2012-04-13 | 이태희 | Construction method of eco-friendly flooring of parking garage |
| CN104694814A (en) * | 2015-01-26 | 2015-06-10 | 北京金科复合材料有限责任公司 | Anti-explosion terrace coating material and preparation method thereof |
| CN104894940A (en) * | 2015-05-22 | 2015-09-09 | 中交第四航务工程勘察设计院有限公司 | Construction method of wear-resisting terrace of RTG shunting lane steering zone |
| CN110607894A (en) * | 2019-08-12 | 2019-12-24 | 中国建筑第二工程局有限公司 | Construction method for floor of constructional engineering |
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