CN103556831A - Construction method for huge-area rib-free wear-resisting concrete terrace - Google Patents
Construction method for huge-area rib-free wear-resisting concrete terrace Download PDFInfo
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- CN103556831A CN103556831A CN201310577961.4A CN201310577961A CN103556831A CN 103556831 A CN103556831 A CN 103556831A CN 201310577961 A CN201310577961 A CN 201310577961A CN 103556831 A CN103556831 A CN 103556831A
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- 239000004567 concrete Substances 0.000 title claims abstract description 132
- 238000010276 construction Methods 0.000 title claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- 239000012791 sliding layer Substances 0.000 claims abstract description 12
- 238000005520 cutting process Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000004576 sand Substances 0.000 claims abstract description 5
- 239000004793 Polystyrene Substances 0.000 claims description 13
- 229920002223 polystyrene Polymers 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- 238000012546 transfer Methods 0.000 claims description 11
- 238000005336 cracking Methods 0.000 claims description 10
- 238000013461 design Methods 0.000 claims description 9
- 238000010410 dusting Methods 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 6
- 229910003460 diamond Inorganic materials 0.000 claims description 6
- 239000010432 diamond Substances 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 6
- 239000011490 mineral wool Substances 0.000 claims description 6
- 210000003205 muscle Anatomy 0.000 claims description 6
- 235000019738 Limestone Nutrition 0.000 claims description 5
- 230000018044 dehydration Effects 0.000 claims description 5
- 238000006297 dehydration reaction Methods 0.000 claims description 5
- 239000006028 limestone Substances 0.000 claims description 5
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 4
- 210000000988 bone and bone Anatomy 0.000 claims description 4
- 230000001680 brushing effect Effects 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 230000003467 diminishing effect Effects 0.000 claims description 4
- 239000010410 layer Substances 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 4
- 239000004590 silicone sealant Substances 0.000 claims description 4
- 239000011800 void material Substances 0.000 claims description 4
- 101700004678 SLIT3 Proteins 0.000 claims description 3
- 102100027339 Slit homolog 3 protein Human genes 0.000 claims description 3
- 239000002390 adhesive tape Substances 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 3
- 239000011083 cement mortar Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000007654 immersion Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 238000010926 purge Methods 0.000 claims description 3
- 239000000565 sealant Substances 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- 239000002352 surface water Substances 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 238000009435 building construction Methods 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 230000008602 contraction Effects 0.000 abstract 1
- 229910001651 emery Inorganic materials 0.000 abstract 1
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- 230000007547 defect Effects 0.000 description 5
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- 239000002344 surface layer Substances 0.000 description 1
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Abstract
The invention belongs to the technical field of building construction, in particular to a construction method for a huge-area rib-free wear-resisting concrete terrace. The construction method mainly comprises the following steps: 1, treating a foundation; 2, designing terrace concrete according to the following mix proportion; 3, arranging a structure sliding layer; 4, dividing a terrace pouring plate; 5, mounting steel channel templates; 6, pouring concrete and leveling; 7, performing water absorption processing on a concrete surface; 8, dispersing emery; 9, conducting press polish on the surface; 10, pouring other slab concrete in an alternative bay manner; 11, covering and curing; 12, cutting contraction joints; 13, arranging expansion joints; 14, filling the expansion joints; 15 protecting the finished product. The construction method has obvious economic benefits, is high in operability, and meets energy-saving environment-protection and green construction requirements. Moreover, reinforcing bars are saved, the construction is convenient, and the key technical difficult problems that the service functions of the huge-area rib-free concrete terrace are affected by sand loss, shedding, cracks and the like.
Description
Technical field
The present invention relates to a kind of huge area without muscle abrasion-proof concrete method for constructing terrace, belong to technical field of building construction.
Background technology
In recent years, for meeting industrial manufacture process requirement, huge area steel-structure factory building rises in a large number, and 30,000 square metres and above huge area workshop concrete floor can be found everywhere.But, owing to there is no at present huge area concrete floor the coordination of construction technique, cause it that irregular cracks and the serious mass defect such as dusting, delamination occur, directly affect the use function in workshop, become a national technical barrier anxious to be resolved.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of and guarantee terrace quality and use the huge area of function without muscle abrasion-proof concrete method for constructing terrace.
Huge area of the present invention, without muscle abrasion-proof concrete method for constructing terrace, is characterized in that taking following steps:
1) ground is processed: Eloor Design allows that live load standard value is when 60～120KPa, and adopting thickness is that 300～600 ㎜ 3:7 dirt roll ground; Eloor Design allows that live load standard value is when 125～160KPa, adopts 600～900 ㎜ graded broken stones to roll ground;
2) concrete designs according to following match ratio: 1. water-binder ratio 0.45～0.5, initial setting time 8～12h, the slump 120 ㎜ ± 20 ㎜; 2. admixture pumping, diminishing and slow setting composite additive; 3. every cubic meter of concrete admixture 0.6～0.9 ㎏ cracking resistance PP fiber; 4. select 42.5 grades of P.O moderate heat cements, concrete cement consumption 280～320 kilograms per cubic meter; 5. selecting particle diameter is 5～10mm and 10～30mm, the limestone gravel of mud content 1%～2% continuous grading, and its void content is 36%～38%, and clad coefficient is 2.0～2.3, and slurry bone ratio is 0.26～0.28; 6. select the rear fineness modulus 2.70～2.85 of sieve, thick river sand in average grain diameter 0.36～0.38mm, mud content 1.5%～2.5%;
3) structure sliding layer arranges: in body of wall 3 inner sides and post and equipment Foundations periphery paste the thick extruded polystyrene board sliding layer of 8～15 ㎜, extruded polystyrene board sliding layer and concrete are contour;
4) terrace is built plate division: the concrete plate minor face of building, according to 4.0～6.0m, is built the long limit of plate and divided and locate unwrapping wire according to 24～36m on ground;
5) build the first plate concrete: according to concrete, jump storehouse sequence of construction numbering and first build the first plate concrete, levelling bracing wire on ground, adopt the accurate levelling ground of cement mortar of 1:1～1:3, draw again concrete upper horizontal line mounting groove steel form, channel-section steel template web plane inwardly, then in channel-section steel template outside, squeeze into piling bar in ground and fix, the 10～15KN/m producing while making it meet concreting
2lateral pressure requirement;
6) concrete leveling: the concrete of building plate adopts after immersion vibrator vibration compacting, take channel-section steel template as track, adopts walking beam to come and go 2～4 accurate leveling concretes, makes its planeness meet the allowable variation requirement of 3～5 ㎜;
7) concrete surface water suction is processed: adopt vacuum dehydration air cushion to be completely layered on concrete upper surface;
8) dispense diamond dust: on concrete surface, during people's footprint depression 2～4 ㎜, start evenly to dispense diamond dust, its consumption is 5～8Kg/m
2, and adopting wood float to be made real, plucking is rubbed with the hands and is put down repeatedly, until particles of silicon carbide is evenly distributed;
9) surperficial press polish: adopt electronic finisher to come and go and carry slurry and troweling for 2～4 times, complete compacting light 2～4 times before concrete initial set;
10) jump storehouse and sequentially build other numbering plate concrete: according to concrete, jump storehouse sequence of construction and build other numbering plate concrete, build the long limit of plate constuction joint and close up the time and determine according to 12～24h for concrete adjacent two, build plate minor face 5 constuction joints and close up the time and determine according to 90～110h;
11) covering curing: after concrete initial set, and its surface is while sprinkling water not dusting, sprinkles water and pastes layer of plastic film and completely spread one deck mineral wool felt and carry out heat and moisture preserving maintenance 14～16d;
12) shrinkage joint cutting: after concreting 24h, and during upper not dusting of people, according to the longitudinal and transverse spacing between shrinkage joint, be respectively the distance of 4000～6000mm, adopt transit cultellation that shrinkage joint grid square net bullet is surveyed in concrete surface, then adopt joint cutter cutting shrinkage joint, width of slit 3～5 ㎜, depth of cut is with 50～80 ㎜;
13) dilatation joint is set: 1. on concrete top, the both sides of dilatation joint position, 600～1000 ㎜ width are set, diameter is 8～12mm, the two-way concrete slab net that spacing is 150mm; 2. concrete section middle part arranges HRB400 level diameter 18～22 ㎜, length 600～800 ㎜, level interval 400～600 ㎜ steel bar force transfer bars, and connect dilatation joint both sides, steel bar force transfer bar left side is directly built in concrete fixing, after concrete demoulding, adopt polyvinyl chloride cementing agent, on concrete section, paste 18～25 ㎜ thickness extruded polystyrene boards and form dilatation joint; 3. by the dilatation joint right side steel bar force transfer bar of brushing pitch in advance, insert and fill up in the zinc-plated sleeve pipe in the blind end of DN32～36mm of sawdust, the expansion space of reserved 30～50 ㎜ length of end;
14) dilatation joint is filled out embedding: after 1. treating the workshop concrete construction in a region, adopt electric iron that the extruded polystyrene board in dilatation joint is ironed into 20～30 ㎜ degree of depth; 2. at dilatation joint both sides upper surface snap the line and adopt cutting machine value, foreign material in cleaning seam then, and it is clean to use air compressor will stitch interior purge; 3. in the snap the line outside of dilatation joint both sides, paste paper adhesive tape, and adopt hair-dryer to dry and the concrete side of heating, then adopt sealant gun and weather-proof silicone sealant to fill out embedding dilatation joint;
15) finished product protection: after 1. concrete shrinkage seam cuts, must seal gate by stages, forbid other operation to be constructed; 2. the concrete curing time meets after 14d and can go up people's operation, but forbid to decorate scaffold upright rod, directly contact with concrete, must first lay mineral wool felt, on it, lay sheeting caps, the construction of paint swabbing must be wrapped up soft rubber with stirrup leg, forbids hard device to scratch and pollutes concrete.
Wherein, before in step 1), ground is processed, conventionally by original soil rammed; 3:7 dirt refers to slaking pulverized limestone and native volume ratio.
Step 2) admixture pumping in, diminishing and slow setting composite additive, can improve pumpability and operability; Every cubic meter of concrete admixture 0.6～0.9 ㎏ cracking resistance PP fiber, can prevent concrete temperature stress cracking; Selecting particle diameter is 5～10mm and 10～30mm, the limestone gravel of mud content 1%～2% continuous grading, and its void content is 36%～38%, and clad coefficient is 2.0～2.3, and slurry bone ratio is 0.26～0.28, can utilize " skeleton " stabilizing effect, reduces concrete dry shrinkage; Select the rear fineness modulus 2.70～2.85 of sieve, in average grain diameter 0.36～0.38mm, mud content 1.5%～2.5%, thick river sand, can reduce contract with dry rate.
In step 3), in the concrete thickness scope of body of wall inner side and post and equipment Foundations periphery, paste the extruded polystyrene board sliding layer of 8～15 ㎜ thickness, can prevent the secondary stress guides such as structure sediment and concrete breathing to cause concrete floor cracking.
In step 7), adopt vacuum dehydration air cushion to be completely layered on concrete upper surface, can absorb its unnecessary moisture, improve surface strength, prevent dusting, decortication.
It is definite according to 12～24h that in step 10), the concrete long limit constuction joint of adjacent two plates closes up the time, and minor face constuction joint closes up the time to be determined according to 90～110h, so that release portion concrete temperature shrinkage stress.
In step 13) by the dilatation joint right side steel bar force transfer bar of brushing pitch in advance, insertion is filled up in the zinc-plated sleeve pipe in the blind end of DN32～36mm of sawdust, the expansion space of reserved 30～50 ㎜ length of end, so that free-extension, wherein the zinc-plated sleeve pipe in the blind end of DN32～36mm refers to that the average diameter of zinc-plated sleeve pipe is 32～36mm.
The invention has the beneficial effects as follows:
1) adopt cracking resistance PP fiber, replace the anticracking steel mesh reinforcement of the double-layer double-direction φ 10mm interval 150mm of traditional method configuration, can save 70 yuan/m of construction investment
2, remarkable in economical benefits, workable, meet energy-conserving and environment-protective and green construction requirement.
2) adopt after cracking resistance PP fiber, can in concrete, set up three-dimensional anti-crack fiber system, thermal stresses is had to good three-dimensional and suppress ability, can effectively solve the defect that traditional method configuration reinforcement net cannot solve thermal stress cracks.
3) adopt concrete floor plate to jump storehouse construction technology, can effectively solve continuous concreting conventional construction method because of the concentrated cracking phenomena causing of temperature shrinkage stress.
4) adopt vacuum water suction technology, increased substantially concrete surface intensity, can effectively solve the surperficial dusting defect that traditional method surface layer mortar bleeding causes.
5) adopt concrete magma press polish technology, increased substantially the globality of concrete floor, can effectively solve the delamination defect that traditional float coat mortar way causes because vehicle rolls.
6) in the body of wall inner side contacting with terrace, post and equipment Foundations surrounding, sliding layer is set, can effectively solves the concrete floor cracking defect that traditional method causes because of sedimentation and swell-shrinking deformation.
Accompanying drawing explanation
Fig. 1 is concrete terrace construction flow nodes drawing in the present invention.
Fig. 2 is dilatation joint node drawing in Fig. 1.
Fig. 3 is shrinkage joint and dilatation joint construction layout plan.
In figure: 1, ground 2, concrete 3, body of wall 4, extruded polystyrene board sliding layer 5, build plate minor face 6, build the long limit 7 of plate, channel-section steel template 8, walking beam 9, vacuum dehydration air cushion 10, shrinkage joint 11, two-way concrete slab net 12, steel bar force transfer bar 13, dilatation joint 14, zinc-plated sleeve pipe 15, weather-proof silicone sealant.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described further:
As shown in FIG. 1 to 3, huge area of the present invention is without muscle abrasion-proof concrete method for constructing terrace, and step is as follows:
1) ground is processed: Eloor Design allows that live load standard value is when 60～120KPa, and employing thickness is that the 3:7 dirt of 300～600 ㎜ rolls ground 1; Eloor Design allows that live load standard value is when 125～160KPa, adopts 600～900 ㎜ graded broken stones to roll ground 1;
2) concrete designs according to following match ratio: 1. water-binder ratio 0.45～0.5, initial setting time 8～12h, the slump 120 ㎜ ± 20 ㎜; 2. admixture pumping, diminishing and slow setting composite additive; 3. every cubic meter of concrete admixture 0.6～0.9 ㎏ cracking resistance PP fiber; 4. select 42.5 grades of P.O moderate heat cements, concrete cement consumption 280～320 kilograms per cubic meter; 5. selecting particle diameter is 5～10mm or 10～30mm, the limestone gravel of mud content 1%～2% continuous grading, and its void content is 36%～38%, and clad coefficient is 2.0～2.3, and slurry bone ratio is 0.26～0.28; 6. select the rear fineness modulus 2.70～2.85 of sieve, thick river sand in average grain diameter 0.36～0.38mm, mud content 1.5%～2.5%;
3) structure sliding layer arranges: in body of wall 3 inner sides and concrete 2 thickness ranges of post and equipment Foundations periphery paste the extruded polystyrene board sliding layer 4 of 8～15 ㎜ thickness;
4) terrace is built plate division: concrete 2 is built plate minor face 5 according to 4.0～6.0m, builds the long limit 6 of plate and according to 24～36m, divides and locate unwrapping wire;
5) mounting groove steel form: levelling bracing wire on ground 1, adopt the accurate levelling ground of cement mortar of 1:1～1:3, draw again concrete 2 upper horizontal line mounting groove steel forms 7, channel-section steel template 7 web plane inwardly, then in channel-section steel template 7 outsides, squeeze into the interior piling bar of ground 1 and fix, the 10～15KN/m producing while making it meet concreting
2lateral pressure requirement;
6) concreting and levelling: each concrete 2 of building plate adopts after immersion vibrator vibration compacting, take channel-section steel template 7 as track, adopt walking beam 8 to come and go 2～4 accurate leveling concretes 2, make its planeness meet the allowable variation requirement of 3～5 ㎜;
7) concrete surface water suction is processed: adopt vacuum dehydration air cushion 9 to be completely layered on concrete 2 upper surfaces;
8) dispense diamond dust: when concrete 2 upper people's footprint depression 2～4 ㎜ in surface, start evenly to dispense diamond dust, its consumption is 5～8Kg/m
2, and adopting wood float to be made real, plucking is rubbed with the hands and is put down repeatedly, until particles of silicon carbide is evenly distributed;
9) surperficial press polish: adopt electronic finisher to come and go and carry slurry and troweling for 2～4 times, complete 2～4 times compacting light before concrete 2 initial sets;
10) jump storehouse and build other plate concrete: according to concrete, jump storehouse sequence of construction concreting, build the long limit of plate 6 constuction joints and close up the time and determine according to 12～24h for adjacent two of concrete 2, build plate minor face 5 constuction joints and close up the time and determine according to 90～110h;
11) covering curing: after concrete 2 initial sets, and its surface is while sprinkling water not dusting, sprinkles water and pastes layer of plastic film and completely spread one deck mineral wool felt and carry out heat and moisture preserving maintenance 14～16d;
12) shrinkage joint cutting: concrete 2 is built after 24h, and during upper not dusting of people, according to the longitudinal and transverse spacing between shrinkage joint, be respectively the distance of 4000～6000mm, adopt transit cultellation that shrinkage joint grid square net bullet is surveyed in concrete 2 surfaces, then adopt joint cutter cutting shrinkage joint 10, width of slit 3～5 ㎜, depth of cut is with 50～80 ㎜;
13) dilatation joint is set: 1. dilatation joint 13 both sides concrete 2 tops, place, position arrange 600～1000 ㎜ width, the two-way concrete slab net 11 that φ 8～12mm spacing is 150mm; 2. concrete 2 middle parts, cross section arrange HRB400 level diameter 18～22 ㎜, length 600～800 ㎜, level interval 400～600 ㎜ steel bar force transfer bars 12, and connect dilatation joint 13 both sides, steel bar force transfer bar 12 left sides are directly built in concrete 2 interior fixing, after the concrete demoulding of left side, adopt polyvinyl chloride cementing agent, on concrete 2 cross sections, paste 18～25 ㎜ thickness extruded polystyrene boards and form dilatation joint 13; 3. by the dilatation joint 13 right sides steel bar force transfer bar 12 of brushing pitch in advance, insert and fill up in the zinc-plated sleeve pipe 14 in the blind end of DN32～36mm of sawdust, the expansion space of reserved 30～50 ㎜ length of end;
14) dilatation joint is filled out embedding: after 1. treating workshop concrete 2 constructions in a region, adopt electric iron that the extruded polystyrene board in dilatation joint 13 is ironed into 20～30 ㎜ degree of depth; 2. at dilatation joint 13 both sides upper surface snap the line and adopt cutting machine value, foreign material in cleaning seam then, and it is clean to use air compressor will stitch interior purge; 3. in the snap the line outside of dilatation joint 13 both sides, paste paper adhesive tape, and adopt hair-dryer to dry and the side that adds hot concrete 2, then adopt sealant gun and weather-proof silicone sealant 15 to fill out embedding dilatation joint 13;
15) finished product protection: after 1. concrete 2 shrinkage joints cut, must seal gate by stages, forbid other operations to be constructed; 2. concrete 2 curing times can be gone up people's operation after meeting 14d, but forbid to decorate scaffold upright rod, directly contact with concrete 2, must first lay mineral wool felt, on it, lay sheeting caps, the construction of paint swabbing must be wrapped up soft rubber with stirrup leg, forbids hard device to scratch and pollutes concrete 2.
Claims (1)
1. huge area, without a muscle abrasion-proof concrete method for constructing terrace, is characterized in that taking following steps:
1) ground is processed: Eloor Design allows that live load standard value is when 60～120KPa, and adopting thickness is that 300～600 ㎜ 3:7 dirt roll ground (1); Eloor Design allows that live load standard value is when 125～160KPa, adopts 600～900 ㎜ graded broken stones to roll ground (1);
2) concrete designs according to following match ratio: 1. water-binder ratio 0.45～0.5, initial setting time 8～12h, the slump 120 ㎜ ± 20 ㎜; 2. admixture pumping, diminishing and slow setting composite additive; 3. every cubic meter of concrete admixture 0.6～0.9 ㎏ cracking resistance PP fiber; 4. select 42.5 grades of P.O moderate heat cements, concrete cement consumption 280～320 kilograms per cubic meter; 5. selecting particle diameter is 5～10mm and 10～30mm, the limestone gravel of mud content 1%～2% continuous grading, and its void content is 36%～38%, and clad coefficient is 2.0～2.3, and slurry bone ratio is 0.26～0.28; 6. select the rear fineness modulus 2.70～2.85 of sieve, thick river sand in average grain diameter 0.36～0.38mm, mud content 1.5%～2.5%;
3) structure sliding layer arranges: in body of wall 3 inner sides and post and equipment Foundations periphery paste the thick extruded polystyrene board sliding layer (4) of 8～15 ㎜, extruded polystyrene board sliding layer (4) is contour with concrete (2);
4) terrace is built plate and is divided: concrete (2) build plate minor face (5) according to 4.0～6.0m, build that the long limit of plate (6) is divided according to 24～36m and at the upper location of ground (1) unwrapping wire;
5) build the first plate concrete: according to concrete, jump storehouse sequence of construction numbering and first build the first plate concrete, in the upper levelling bracing wire of ground (1), adopt the accurate levelling ground of cement mortar of 1:1～1:3, draw again concrete (2) upper horizontal line mounting groove steel form (7), channel-section steel template (7) web plane inwardly, then in channel-section steel template (7) outside, squeeze into piling bar in ground (1) and fix, the 10～15KN/m producing while making it meet concreting
2lateral pressure requirement;
6) concrete leveling: the concrete (2) of building plate adopts after immersion vibrator vibration compacting, the channel-section steel template (7) of take is track, adopt walking beam (8) to come and go 2～4 accurate leveling concretes (2), make its planeness meet the allowable variation requirement of 3～5 ㎜;
7) concrete surface water suction is processed: adopt vacuum dehydration air cushion (9) to be completely layered on concrete (2) upper surface;
8) dispense diamond dust: on concrete (2) surface, during people's footprint depression 2～4 ㎜, start evenly to dispense diamond dust, its consumption is 5～8Kg/m
2, and adopting wood float to be made real, plucking is rubbed with the hands and is put down repeatedly, until particles of silicon carbide is evenly distributed;
9) surperficial press polish: adopt electronic finisher to come and go and carry slurry and troweling for 2～4 times, complete compacting light 2～4 times before concrete (2) initial set;
10) jump storehouse and sequentially build other numbering plate concrete: according to concrete, jump storehouse sequence of construction and build other numbering plate concrete, build the long limit (6) of plate constuction joint and close up the time and determine according to 12～24h for adjacent two of concrete (2), build plate minor face 5 constuction joints and close up the time and determine according to 90～110h;
11) covering curing: after concrete (2) initial set, and its surface is while sprinkling water not dusting, sprinkles water and pastes layer of plastic film and completely spread one deck mineral wool felt and carry out heat and moisture preserving maintenance 14～16d;
12) shrinkage joint cutting: concrete (2) is built after 24h, and during upper not dusting of people, according to the longitudinal and transverse spacing between shrinkage joint, be respectively the distance of 4000～6000mm, adopt transit cultellation that shrinkage joint grid square net bullet is surveyed in concrete (2) surface, then adopt joint cutter cutting shrinkage joint (10), width of slit 3～5 ㎜, depth of cut is with 50～80 ㎜;
13) dilatation joint is set: 1. on both sides concrete (2) top of dilatation joint (13) position, 600～1000 ㎜ width are set, diameter is 8～12mm, the two-way concrete slab net (11) that spacing is 150mm; 2. middle part, concrete (2) cross section arranges HRB400 level diameter 18～22 ㎜, length 600～800 ㎜, level interval 400～600 ㎜ steel bar force transfer bars (12), and connect dilatation joint (13) both sides, steel bar force transfer bar (12) left side is directly built in concrete (2) fixing, after concrete demoulding, adopt polyvinyl chloride cementing agent, on concrete (2) cross section, paste 18～25 ㎜ thickness extruded polystyrene boards and form dilatation joint (13); 3. by dilatation joint (13) the right side steel bar force transfer bar (12) of brushing pitch in advance, insert and fill up in the zinc-plated sleeve pipe in the blind end of DN32～36mm (14) of sawdust, the expansion space of reserved 30～50 ㎜ length of end;
14) dilatation joint is filled out embedding: after 1. treating workshop concrete (2) construction in a region, adopt electric iron that the extruded polystyrene board in dilatation joint (13) is ironed into 20～30 ㎜ degree of depth; 2. at dilatation joint (13) both sides upper surface snap the line and adopt cutting machine value, foreign material in cleaning seam then, and it is clean to use air compressor will stitch interior purge; 3. in the snap the line outside of dilatation joint (13) both sides, paste paper adhesive tape, and adopt hair-dryer to dry and the side that adds hot concrete (2), then adopt sealant gun and weather-proof silicone sealant (15) to fill out embedding dilatation joint (13);
15) finished product protection: after 1. concrete (2) shrinkage joint cuts, must seal gate by stages, forbid other operation to be constructed; 2. concrete (2) curing time can be gone up people's operation after meeting 14d, but forbidding to decorate scaffold upright rod directly contacts with concrete (2), must first lay mineral wool felt, on it, lay sheeting caps, the construction of paint swabbing must be wrapped up soft rubber with stirrup leg, forbids hard device to scratch and pollutes concrete (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310577961.4A CN103556831B (en) | 2013-11-18 | 2013-11-18 | Huge area is without muscle abrasion-proof concrete method for constructing terrace |
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| CN106836815A (en) * | 2017-03-08 | 2017-06-13 | 杭州二建建设有限公司 | Large area diamond dust floor structure plate and surface layer one-off construction method |
| CN106917335A (en) * | 2015-12-28 | 2017-07-04 | 上海丰邦建材科技有限公司 | Spraying terrace |
| CN107288312A (en) * | 2017-06-29 | 2017-10-24 | 中交航局第四工程有限公司 | Ultra-flat terrace construction technology after one improvement |
| CN107512893A (en) * | 2016-06-15 | 2017-12-26 | 孙树伟 | Road and bridge engineering Concrete Crack Control method |
| CN107587398A (en) * | 2017-09-18 | 2018-01-16 | 云南福明建筑装饰工程有限公司 | The construction method of diamond dust ground curing agent |
| CN108049540A (en) * | 2017-11-30 | 2018-05-18 | 中建六局第三建筑工程有限公司 | More super flat anticracking one-pass molding load bearing heat preserving floor construction engineering methods in temperature control cold chain storehouse |
| CN110725505A (en) * | 2019-10-29 | 2020-01-24 | 江卫强 | Fair-faced concrete floor product and construction method thereof |
| CN112392011A (en) * | 2020-10-23 | 2021-02-23 | 广东水电二局股份有限公司 | Method for repairing gentle slope water release building surface by using ultra-high performance concrete |
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| CN106917335A (en) * | 2015-12-28 | 2017-07-04 | 上海丰邦建材科技有限公司 | Spraying terrace |
| CN107512893A (en) * | 2016-06-15 | 2017-12-26 | 孙树伟 | Road and bridge engineering Concrete Crack Control method |
| CN106836815A (en) * | 2017-03-08 | 2017-06-13 | 杭州二建建设有限公司 | Large area diamond dust floor structure plate and surface layer one-off construction method |
| CN107288312A (en) * | 2017-06-29 | 2017-10-24 | 中交航局第四工程有限公司 | Ultra-flat terrace construction technology after one improvement |
| CN107587398A (en) * | 2017-09-18 | 2018-01-16 | 云南福明建筑装饰工程有限公司 | The construction method of diamond dust ground curing agent |
| CN108049540A (en) * | 2017-11-30 | 2018-05-18 | 中建六局第三建筑工程有限公司 | More super flat anticracking one-pass molding load bearing heat preserving floor construction engineering methods in temperature control cold chain storehouse |
| CN108049540B (en) * | 2017-11-30 | 2019-10-18 | 中建六局第三建筑工程有限公司 | The super flat anticracking one-pass molding load bearing heat preserving floor construction engineering method in more temperature control cold chains library |
| CN110725505A (en) * | 2019-10-29 | 2020-01-24 | 江卫强 | Fair-faced concrete floor product and construction method thereof |
| CN112392011A (en) * | 2020-10-23 | 2021-02-23 | 广东水电二局股份有限公司 | Method for repairing gentle slope water release building surface by using ultra-high performance concrete |
| CN112392011B (en) * | 2020-10-23 | 2021-07-13 | 广东水电二局股份有限公司 | Method for repairing gentle slope water release building surface by using ultra-high performance concrete |
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