CN106760289A - A kind of anticracking construction method of foam concrete - Google Patents

A kind of anticracking construction method of foam concrete Download PDF

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Publication number
CN106760289A
CN106760289A CN201611188872.0A CN201611188872A CN106760289A CN 106760289 A CN106760289 A CN 106760289A CN 201611188872 A CN201611188872 A CN 201611188872A CN 106760289 A CN106760289 A CN 106760289A
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CN
China
Prior art keywords
foam concrete
layer
construction method
polymer mortar
anticracking
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Pending
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CN201611188872.0A
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Chinese (zh)
Inventor
李敬民
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Beijing Oriental Yue Engineering Technology Co Ltd
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Beijing Oriental Yue Engineering Technology Co Ltd
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Priority to CN201611188872.0A priority Critical patent/CN106760289A/en
Publication of CN106760289A publication Critical patent/CN106760289A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00Coverings or linings, e.g. for walls or ceilings
    • E04F13/02Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
    • E04F13/04Bases for plaster
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00Coverings or linings, e.g. for walls or ceilings
    • E04F13/02Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
    • E04F13/04Bases for plaster
    • E04F13/047Plaster carrying meshes

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)

Abstract

The invention discloses a kind of anticracking construction method of foam concrete, comprise the following steps:1) basic unit is cleared up, foam concrete relief is set by preset thickness, pour bubble concrete layer, struck off with aluminium alloy darby;2) it is after normal temperature maintenance, the removing surface of foam concrete bed course is clean, smear ground floor polymer mortar;3) before the initial set hardening of ground floor polymer mortar, the alkaline-resisting grid cloth of paving;4) after the completion of grid cloth paving, second layer polymer mortar is smeared again on grid cloth;5) after conserving 7 days, float coat is applied on second layer polymer mortar layer, completes construction.The present invention substitutes traditional top screed-coat using polymer mortar layer, preferably change room () layer of structure in face, both the purpose for ensureing construction quality is reached, material and artificial consumption reduction construction cost are reduced again, make convenient and quick construction, with stronger promotional value and wide prospect.

Description

A kind of anticracking construction method of foam concrete
Technical field
The present invention relates to construction field, more particularly to a kind of anticracking construction method of foam concrete.
Background technology
Foam concrete, it has as a kind of new construction material:Light weight, high temperature resistant, long service life, heat insulating ability Many advantages, such as good, environmental protection of energy, quick construction facilitate, greatly reduce labour intensity, at present by vast architectural design personnel The material of traditional light aggregate concrete is widely applied in engineering construction as an alternative.
Foam concrete point light-weight aggregate (bulk density 700kg/m3Below) and heavy aggregate concrete (bulk density 700kg/ m3More than).Wherein, Lightweight aggregate foam concrete is (to typically constitute from the 50%- of dry material total amount with cement as primary raw material 100%), other admixtures are second class powered coal ash or super finely ground slag (accounting for less than the 20% of cement consumption), the material of foam concrete Material struc-ture lacks the structural constituent of cracking resistance;Secondly, heavy aggregate foam concrete is used less due to less stable.Gently Foam concrete gather materials because materials microstructure reason causes to have the disadvantage that:1. the foam concrete without coarse aggregate is hard Surface is easily ftractureed after change, hence it is evident that reduce its intensity, the intensity to ensure foam concrete having, and from increase cement and outward Plus the consumption of agent, do not meet the requirement of country's " four sections-environmental protection ";2. easily absorbed water after foam concrete cracking, so as to significantly drop Low its insulation, heat-proof quality, cause to increase energy resource consumption;3. face checking repairing, that is, increased the input of manpower financial capacity, and shadow The overall perception rung after construction speed, and repairing is second-rate.
In view of the disadvantage mentioned above of foam concrete, prior art is only set about from foamed concrete material structure, adjusts its material Material proportioning, the development for but constraining foam concrete is used.And do not consider the adjustment from working procedure and solve foam concrete The problem of cracking.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of anticracking construction method of foam concrete, existing so as to overcome There is the drawbacks described above of technology.
The technical problems to be solved by the invention are achieved through the following technical solutions:
A kind of anticracking construction method of foam concrete, comprises the following steps:
1) basic unit is cleared up, foam concrete relief is set by preset thickness, pour bubble concrete layer, scraped with aluminium alloy Thick stick strikes off;
2) it is after normal temperature maintenance, the removing surface of foam concrete bed course is clean, smear ground floor polymer mortar;
3) before the initial set hardening of ground floor polymer mortar, the alkaline-resisting grid cloth of paving;
4) after the completion of grid cloth paving, second layer polymer mortar is smeared again on grid cloth;
5) after conserving 7 days, float coat is applied on second layer polymer mortar layer, completes construction.
Preferably, in above-mentioned technical proposal, the step 1) in, it is actual (real) thickness to pour foam concrete virtual resurfacing thickness 1.2-1.3 times.
Preferably, in above-mentioned technical proposal, the step 1) also include:When normal temperature is poured, after pouring 24 hours, watering is supported Shield is no less than 7 days.
Preferably, in above-mentioned technical proposal, the step 1) in, aluminium alloy darby more than or equal to 3m.
Preferably, in above-mentioned technical proposal, the thickness of the ground floor polymer mortar is 2-4mm;Second strata The thickness of compound mortar is 0.5-1.5mm.
Preferably, in above-mentioned technical proposal, step 3) in, alkaline-resisting grid cloth paving should be smooth, and edge overlap joint is not less than 100mm。
Preferably, in above-mentioned technical proposal, step 3) in, alkaline-resisting grid cloth has mesh, and the mesh size is less than 8mm ×8mm。
Preferably, in above-mentioned technical proposal, step 3) in, the grammes per square metre of alkaline-resisting grid cloth is 160-200g/ ㎡.
Preferably, in above-mentioned technical proposal, step 5) also include:After maintenance 7 days, in first polymer screed and second After one polymer screed is coagulated together completely, press polish is carried out in polymer surfaces, the polymer surfaces after press polish set anti- Water layer and fish tail and waterproof layer, apply float coat on fish tail and waterproof layer afterwards, complete construction.
Above-mentioned technical proposal of the present invention, has the advantages that:
Compared with prior art, the present invention increases one layer of polymeric mortar+alkaline-resisting grid using on foam concrete surface The method of cloth, overcomes foam concrete shortcoming easy to crack, allows the advantage of foam concrete to fully demonstrate out.Polymer resists It is dry-mixed with the one-component of polymer inlet polymer modification material and high resiliency acid and alkali-resistance fiber composite to split cement mortar Material, site operation adds water to stir and can be used, and is conducive to protecting the combination property of heat insulation base layer, the parent for improving insulation surface layer interface And property, and alkaline-resisting grid cloth is formed as coated substrate modified acroleic acid fat glue with middle alkali or alkali-free glass fibre, with strong Degree is high, good stability, the characteristics of crack resistance is good, can be used in combination with the material such as cement mortar well, and enhancing effect is obvious.
The present invention substitutes traditional top screed-coat using polymer mortar layer, preferably change room () structure in face Level, both reaches the purpose for ensureing construction quality, and material and artificial consumption reduction construction cost are reduced again, makes easy construction fast It is prompt, with stronger promotional value and wide prospect.
Brief description of the drawings
Fig. 1 is the roof structure level completed according to the method for the present invention.
Fig. 2 is the flooring tectonic remnant basin completed according to the method for the present invention.
Wherein:1- floor layers, 2- bubble concrete layers, 3- polymer mortar layers, 4- surface layers, 5- vapour barriers, 6- waterproof layers.
Specific embodiment
Specific embodiment of the invention is described in detail below, in order to further understand the present invention.
Fig. 1 is the roof structure level completed according to the method for the present invention.Fig. 2 is the building completed according to the method for the present invention Ground structure level.
A kind of anticracking construction method of foam concrete, comprises the following steps:
(1) after the floor layer 1 of basic unit is cleaned out, the relief of bubble concrete layer 2 is set by design thickness, pours bubble The virtual resurfacing thickness of foam concrete is 1.2-1.3 times of actual (real) thickness, is struck off with the aluminium alloy darby long not less than 3m;Foam coagulation After the completion of soil is poured, pedestrian above or heap thing should be forbidden;Normal temperature sprinkled water maintenance no less than 7 days after pouring 24 hours.Placement layer by layer When, the placement layer by layer time should be spaced 1-1.5 hours.
(2) conserved after completely 7 days (winter should extend curing time under the conditions of applying) under normal temperature, clean out foam concrete pad The surface of layer or roof heat insulation sloping layer, starts to smear first polymer screed, and thickness 2-4mm is thick, smears polymer mortar and answers root According to actual conditions can subregion, burst, segmentation carry out;The top polymer mortar layer of bubble concrete layer substitutes traditional levelling Layer, screed-coat of no longer constructing.
(3) before treating the initial set hardening of ground floor polymer mortar, the alkaline-resisting grid cloth of paving.Paving should be smooth, and edge is overlapped not It is wide less than 100mm.Alkaline-resisting grid cloth mesh size is less than 8mm × 8mm.The grammes per square metre of alkaline-resisting grid cloth is 160-200g/ ㎡.
(4) after the completion of grid cloth paving, second polymer screed, thickness about 0.5-1.5 (two are smeared again above in time The gross thickness of layer screed is 3-5mm).Ensure that the first and second one polymer mortars are coagulated together to form overall polymer Screed 3.When having waterproof layer 6 such as next procedure, polymer surfaces answer press polish.After press polish, waterproof layer 6 is done above and waterproof is protected Sheath, is surface layer 4 on fish tail and waterproof layer.
(5) after conserving 7 days, you can construction room () face surface layer 4.
Typically, in the construction of structure, vapour barrier 5 is additionally provided with, vapour barrier 5 is located at floor layer 1 and bubble concrete layer 2 Between.
Polymers anti-cracking cement mortar of the invention is with polymer inlet polymer modification material and high resiliency acid and alkali-resistance The one-component dry blend (polymers anti-cracking cement mortar, now common market is on sale) of fiber composite, site operation adds water and stirs Mix and can be used, be conducive to protecting the combination property of heat insulation base layer, improve the compatibility at insulation surface layer interface, and alkaline-resisting grid cloth (common market is on sale) is formed as coated substrate modified acroleic acid fat glue with middle alkali or alkali-free glass fibre, with intensity Height, good stability the characteristics of crack resistance is good, can be used in combination with the material such as cement mortar well, and enhancing effect is obvious.
Although the present invention is disclosed as above with embodiment, so it is not intended to limit the present invention, any people in the art Member, without departing from the spirit and scope of the present invention, can make a variety of selections and modification, therefore protection model of the invention Enclose and limited by claims and its equivalents.

Claims (9)

1. a kind of anticracking construction method of foam concrete, it is characterised in that the anticracking construction method bag of the foam concrete Include following steps:
1) basic unit is cleared up, foam concrete relief is set by preset thickness, pour bubble concrete layer, scraped with aluminium alloy darby It is flat;
2) it is after normal temperature maintenance, the removing surface of foam concrete bed course is clean, smear ground floor polymer mortar;
3) before the initial set hardening of ground floor polymer mortar, the alkaline-resisting grid cloth of paving;
4) after the completion of grid cloth paving, second layer polymer mortar is smeared again on grid cloth;
5) after conserving 7 days, float coat is applied on second layer polymer mortar layer, completes construction.
2. the anticracking construction method of foam concrete according to claim 1, it is characterised in that the step 1) in, pour It is 1.2-1.3 times of actual (real) thickness to build foam concrete virtual resurfacing thickness.
3. the anticracking construction method of foam concrete according to claim 1, it is characterised in that the step 1) also wrap Include:When normal temperature is poured, after pouring 24 hours, watering maintenance is no less than 7 days.
4. the anticracking construction method of foam concrete according to claim 1, it is characterised in that the step 1) in, aluminium Alloy darby more than or equal to 3m.
5. the anticracking construction method of foam concrete according to claim 1, it is characterised in that first one polymer The thickness of mortar is 2-4mm;The thickness of the second layer polymer mortar is 0.5-1.5mm.
6. the anticracking construction method of foam concrete according to claim 1, it is characterised in that step 3) in, alkaline-resisting net The paving of lattice cloth should be smooth, and edge overlap joint is not less than 100mm.
7. the anticracking construction method of foam concrete according to claim 1, it is characterised in that step 3) in, alkaline-resisting net Ge Bu has mesh, and the mesh size is less than 8mm × 8mm.
8. the anticracking construction method of foam concrete according to claim 1, it is characterised in that step 3) in, alkaline-resisting net The grammes per square metre of lattice cloth is 160-200g/ ㎡.
9. the anticracking construction method of foam concrete according to claim 1, it is characterised in that step 5) also include:Support Shield after first polymer screed and second layer polymer mortar layer are coagulated together completely, is entered after 7 days in polymer surfaces Row press polish, the polymer surfaces after press polish set waterproof layer and fish tail and waterproof layer, apply float coat on fish tail and waterproof layer afterwards, complete Into construction.
CN201611188872.0A 2016-12-21 2016-12-21 A kind of anticracking construction method of foam concrete Pending CN106760289A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107288283A (en) * 2017-07-19 2017-10-24 温州建设集团有限公司 The contrary sequence method basement rod structure and its construction technology of a kind of steel wire anchoring
CN107435417A (en) * 2017-06-20 2017-12-05 中国华西企业有限公司 Roofing foam concrete construction
CN108691417A (en) * 2018-07-09 2018-10-23 宁波交通工程建设集团有限公司 More nozzle foam concrete distribution devices and operating method
CN111535324A (en) * 2020-05-14 2020-08-14 陈文斌 Synchronous waterproof and anticorrosive construction method for underground cast-in-place concrete pouring
CN112502391A (en) * 2020-11-20 2021-03-16 中铁建工集团有限公司 Crack-resistant construction process based on foamed concrete
CN113250415A (en) * 2021-04-02 2021-08-13 中建材创新科技研究院有限公司 Ground heat preservation leveling system for non-ground heating building and construction method thereof
CN114892918A (en) * 2022-06-21 2022-08-12 中土(苏州)工程建设有限公司 Pouring construction method for controlling cracks of heat-preservation sound-insulation terrace

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CN102454285A (en) * 2010-10-19 2012-05-16 中国建筑第七工程局有限公司 Rubber powder polystyrene granule floor thermal insulation construction method

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107435417A (en) * 2017-06-20 2017-12-05 中国华西企业有限公司 Roofing foam concrete construction
CN107288283A (en) * 2017-07-19 2017-10-24 温州建设集团有限公司 The contrary sequence method basement rod structure and its construction technology of a kind of steel wire anchoring
CN108691417A (en) * 2018-07-09 2018-10-23 宁波交通工程建设集团有限公司 More nozzle foam concrete distribution devices and operating method
CN111535324A (en) * 2020-05-14 2020-08-14 陈文斌 Synchronous waterproof and anticorrosive construction method for underground cast-in-place concrete pouring
CN111535324B (en) * 2020-05-14 2022-03-11 陈文斌 Synchronous waterproof and anticorrosive construction method for underground cast-in-place concrete pouring
CN112502391A (en) * 2020-11-20 2021-03-16 中铁建工集团有限公司 Crack-resistant construction process based on foamed concrete
CN113250415A (en) * 2021-04-02 2021-08-13 中建材创新科技研究院有限公司 Ground heat preservation leveling system for non-ground heating building and construction method thereof
CN114892918A (en) * 2022-06-21 2022-08-12 中土(苏州)工程建设有限公司 Pouring construction method for controlling cracks of heat-preservation sound-insulation terrace

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Application publication date: 20170531

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