CN101338595B - Construction method of haydite dry concrete wall - Google Patents

Construction method of haydite dry concrete wall Download PDF

Info

Publication number
CN101338595B
CN101338595B CN2008101470070A CN200810147007A CN101338595B CN 101338595 B CN101338595 B CN 101338595B CN 2008101470070 A CN2008101470070 A CN 2008101470070A CN 200810147007 A CN200810147007 A CN 200810147007A CN 101338595 B CN101338595 B CN 101338595B
Authority
CN
China
Prior art keywords
concrete
haydite
wall
dry concrete
water
Prior art date
Application number
CN2008101470070A
Other languages
Chinese (zh)
Other versions
CN101338595A (en
Inventor
李全立
袁世伟
何穆
吴延宏
骆发疆
罗朝洪
王伟
李宽平
王振国
成阳
刘晓升
Original Assignee
中建三局第三建设工程有限责任公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中建三局第三建设工程有限责任公司 filed Critical 中建三局第三建设工程有限责任公司
Priority to CN2008101470070A priority Critical patent/CN101338595B/en
Publication of CN101338595A publication Critical patent/CN101338595A/en
Application granted granted Critical
Publication of CN101338595B publication Critical patent/CN101338595B/en

Links

Abstract

The present invention discloses a haydite fair-faced concrete wall construction method which belongs to the concrete wall construction technique field. The construction method includes the following steps: construction preparation; the design of mixing proportion of haydite fair-faced concrete; the design of a fair-faced formwork; the tying of curb wall reinforcing steels; the laying of internal insulation material; the installation of the fair-faced formwork; the agitation, transportation and casting of the haydite concrete; the removal of the fair-faced formwork, and the maintenance and renovation of the fair-face concrete; the fluorocarbon covering for the exposed wall; and the examination and acceptance. The invention takes the haydite concrete as the fair-faced concrete decorative surface and has no ornament on the surface of the exposed wall, and the emphasis and innovation of the engineering application reside in a haydite fair-face concrete technique based on the high performance of high performance haydite concrete.

Description

Construction method of haydite dry concrete wall

Technical field

The invention belongs to the concrete wall technical field of construction, be specifically related to a kind of construction method of haydite dry concrete wall.

Background technology

Clear-water concrete is by the optimal seeking of raw and processed materials, concrete mix optimization, special Shimizu concrete template being installed and support system design and strict control production technology the concrete structure that well construction is built out.This structure is without polishing, show a kind of perfection of simpleness with concrete texture, reach the decorative effect that needs, not only save resource, and eliminated the potential safety hazard that exterior decoration brought, reduce environment pollution, remarkable result is arranged for aspects such as reducing construction costs, shortening construction period.

The haydite dry concrete is higher than dry concrete construction requirement, more exquisite clear-water concrete.Haydite concrete is lighter more than 20% than ordinary concrete, can correspondingly reduce thereby dead load reduces material usage, the labour intensity of structure.According to related data, adopt haydite concrete as exterior wall at northern area, energy consumption will reduce 40-60%.

The consumption of rubble has been saved in the application of haydite.About 20 billion cubic meters of the annual concrete production of China need to consume about 2,400,000,000 tons of stone.Along with the needs of sustained economic development and environmental protection, domestic sand and stone resources is deficient day by day.And China's light aggregate aboundresources, its exploitation and use can not cause environmental disruption, have the characteristics of environmental protection.

Summary of the invention

In order to overcome the deficiency of existing technology, as the clear-water concrete facing, exterior wall surface is not made any decoration with haydite concrete in the present invention, and emphasis that engineering is used and innovation are the haydite dry concrete technologies based on the concrete high-performance of high performance ceramsite.

Porcelain granule light weight aggregate applies to nonweight-bearing building external structure as fair-faced concrete, has the performance of lightweight, thermal insulation, is applied to the unification that space enclosing structure has realized building thermal-insulation energy-saving and material economy.Simultaneously haydite concrete has been carried out life tests such as frost resistance, resistance of chloride ion penetration, anti-carbonization, cracking resistance, anti-contraction, endurance quality is good.

The haydite dry concrete adopts the fair-faced concrete construction technology outward; outer brush clear, colorless protective coating; outseam, cicada seam and the Screw arbor with nut at both-ends hole of arranging with the natural texture and the design of concrete itself are combined to form nature as decorative cover; the haydite dry concrete technology combines with the dry concrete construction technology, makes the haydite dry concrete exterior wall reach the fair-faced concrete standard.

Technological principle of the present invention is as follows:

Determine that haydite concrete satisfies the thermal property of building function and space enclosing structure; by the design of a large amount of assay optimization haydite dry concrete mixs, haydite dry concrete blinding and install, adopt technological difficulties such as haydite come-up, the concrete stirring of haydite dry, the haydite dry of special concrete construction method control haydite concrete concretely built, the reparation of haydite dry concrete surface, the construction of water-based fluorocarbon resin transparent protective coating, and by adopting special-purpose high-quality plain form system assurance haydite dry concrete characteristics to be achieved.

The haydite dry concrete technology combines with the dry concrete construction technology, makes the haydite dry concrete wall plate reach the fair-faced concrete standard.

Realize that step of the present invention is as follows:

(1), preparation of construction;

(2), haydite dry concrete match ratio design;

(3), plain form design;

(4), colligation enclosure wall reinforcing bar;

(5), lay inside thermal conservation material;

(6), plain form is installed;

(7), the haydite concrete stirs, transports, builds;

(8), plain form dismounting, clear water concrete curing, reparation;

(9), exterior wall cover;

(10), inspect for acceptance.

Prick the silk redundance when described colligation enclosure wall reinforcing bar comprises the steps: colligation and bend inwards, double muscle outside correspondence is tied up plastic cushion, is quincuncial arrangement, ties up two road positioning bars during the colligation of body of wall horizontal bar more, exceeds structural level 400mm.

After described enclosure wall reinforcing bar binding finishes; the main reinforce position of proofreading and correct the door and window hole node is accomplished fluently the absolute altitude line to guarantee the thickness of topping on the sleeper muscle at hole, the thickness of control topping; when doorframe and window frame was installed, weld upper, middle and lower three road reinforcing bars at the hole spacing.

Described plain form is installed and is comprised the steps:

(1), wall mould the construction line-putting;

(2), joist colligation, latent inspection, build the foreign material cleaning of concrete place;

(3), wall mould location plastic bushing or the setting of conehead positioning bolt, pre-embedded pipe, the installation of line box, curtain wall built-in fitting;

(4), wall form accessory installation, brushing release agent, operating platform are set up;

(5), check template control line, mortar levelling layer;

(6), according to wall mould the construction line-putting and template numbering, ready formwork hoisting is gone into the position;

(7), template is hung suitable position, by screw rod through walls on the plastic sleeve band of location or by can the section of turnover bolt on the tapered joint headgear of positioning bolt, and preliminary fixing;

(8), adjust the verticality and the piece of template;

(9), lock form clamp, lock nut through walls;

(10), check and to require the formwork erection situation part is reinforced according to node.

Described haydite concrete stirs, transport, build and comprise the steps:

(1), preparation haydite dry concrete mix;

(2), throw in the haydite dry concrete mix;

(3), build the haydite dry concrete.

The present invention has following beneficial effect: construction method of haydite dry concrete wall provided by the invention, and as the clear-water concrete facing, exterior wall surface is not made any decoration with haydite concrete,

Description of drawings

Fig. 1 is a process chart of the present invention.

The specific embodiment

The invention will be further described below in conjunction with accompanying drawing.Be some concrete key points for operation during the present invention constructs below:

1.1, Fig. 1 is process chart of the present invention, realizes that step of the present invention is as follows:

(1), preparation of construction;

(2), haydite dry concrete match ratio design;

(3), plain form design;

(4), colligation enclosure wall reinforcing bar;

(5), lay inside thermal conservation material;

(6), plain form is installed;

(7), the haydite concrete stirs, transports, builds;

(8), plain form dismounting, clear water concrete curing, form removal reparation;

(9), exterior wall cover;

(10), inspect for acceptance.

1.2 haydite dry concrete match ratio design

According to the design strength of haydite concrete, and control haydite concrete and build the requirement of floating in the process, the principal character of haydite dry concrete match ratio design is: described haydite dry concrete match ratio design; Water-cement ratio 0.38~0.42, the slump 180~220mm, divergence is greater than 560mm; Cement: select P.O32.5 or P.O42.5 low alkali cement for use; Haydite: select the ball-shaped leca for use, 75% above haydite particle diameter concentrates between 10~16, and cylindrical compress strength is greater than 5Mpa, and void content is greater than 35%, and the haydite water absorption rate is greater than 10%; Sand: medium sand, fineness modulus are 2.5; Water: should adopt tap water,, must satisfy " GB50021-2001 " 12.2.1~12.2.5 and stipulate to the concrete structure non-corrosiveness as adopting underground water; Water reducing agent: water reducing agent should be selected naphthalene water reducer for use, adds air entraining agent in the concrete and can improve concrete air content, increases the concrete surface bubble, influences the clear water effect, does not adopt gas tracting subtractive agent.

1.3 plain form design

The haydite dry concrete wall plain form designs to the effect that: (1) coated concrete forming board should adopt the homemade gummed peritonaeum template or the WISA plate of difficult deformation, guarantees enough rigidity, and piece is tightly smooth, the smooth-going cleaning of plate face.(2) configuration of template need consider that staying of constuction joint established, the form surfacing piece must stitch to corresponding with outseam, the cicada of architectural design with the piece of large form, guarantees fair-faced effect.(3) plain form all adopts the assembly unit of anti-nail way.(4) employing crack before jigsaw is beaten glass cement, and double faced adhesive tape is sticked at the back.Horizontal flitch keel are carried on the back at transverse joint place between the aluminium beam, back again, and keel adopt the gas nail closely to be connected with back side of panel with wooden peg.(5) select vegetable oil or edible vegetable oil release agent for use, guarantee not pollute concrete wall surface.(6) ornamental strip is selected the solid plastic bar for use, and size should adopt that 20mm is wide, 10mm is dark.

1.4, colligation enclosure wall reinforcing bar

Prick the silk redundance during colligation and bend inwards, in order to avoid cause rust staining because of exposing, double muscle outside correspondence is tied up the thick plastic cushion of 15mm, and the cushion block color should be approaching with concrete color, and spacing 800 * 800 is quincuncial arrangement.Tie up two road positioning bars more during the colligation of body of wall horizontal bar, exceed structural level 400mm, to prevent the displacement of body of wall joint bar.

After the joist colligation finished, the main reinforce position of proofreading and correct the door and window hole node was to guarantee the thickness of topping.Can on the sleeper muscle at hole, accomplish fluently the absolute altitude line, with the thickness of control topping.For preventing the door and window displacement, when doorframe and window frame is installed, weld three roads, upper, middle and lower at the hole simultaneously Reinforcing bar is spacing, and this spacing steel bar end brush rustproof paint is welded on the additional muscle of body of wall horizontal bar, forbids to be welded on the sleeper master muscle.

For guaranteeing that the body of wall double steel bar is horizontal vertically flat, spacing is evenly correct, adopts trapezoidal brace rod.Brace rod pushes up elongated setting at wall, is provided with in body of wall midfeather, and vertical spacing is generally 1500mm, and level interval is general 1200mm.

1.5 lay the inboard heat insulating material of enclosure wall

After the body of wall reinforcing bar binding is finished, tackle it and inspect for acceptance, lay heat insulating material in the enclosure wall inboard after the acceptance(check).

1.6, plain form installs

1.6.1 preparation of construction:

1, wall mould the construction line-putting;

2, joist colligation, latent inspection, build the foreign material cleaning of concrete place;

3, wall mould location plastic bushing (or conehead positioning bolt) setting, pre-embedded pipe, the installation of line box, curtain wall built-in fitting;

4, wall form accessory installation, brushing release agent, operating platform are set up;

5, check template control line, mortar levelling layer.

1.6.2 the wall mould is installed:

1, according to wall mould the construction line-putting and template numbering, ready formwork hoisting is gone into the position;

2, template is hung suitable position, by screw rod through walls on the plastic sleeve band of location or by can the section of turnover bolt on the tapered joint headgear of positioning bolt, and preliminary fixing;

3, adjust the verticality and the piece of template;

4, lock form clamp, lock nut through walls;

5, check the formwork erection situation, require the part is reinforced according to node.

1.7, haydite concrete stirs, transports, builds

1.7.1, the preparation of haydite dry concrete mix

Haydite concrete removes in construction from construction quality control concrete surface effect, the problem that needs emphasis to consider when the endurance quality of haydite concrete itself also is application as the realization material of clear-water concrete.Not only to measure in the engineering traditional performances such as the intensity of haydite concrete and apparent densities; tackle the endurance quality of haydite concrete simultaneously and made related check, mainly comprise the basic active check of frost resistance, resistance of chloride ion penetration, anti-carbonization, crack resistance and aggregate.

1, the come-up of light aggregate can cause the inner homogeneity of haydite concrete to change, and easily causes local defect: cold seam, reveal surface blemishes such as muscle, pitted skin, hole and cavitys, internal flaw such as loose.So the come-up of control haydite is the big difficult point that haydite concrete is used in engineering.In the engineering mainly by control haydite particle diameter, match ratio design and concrete production and the concrete working measure when building control haydite come-up problem.

2, the design of mix character and match ratio will adapt to construction requirement, makes haydite concrete have workability and durability such as good flowability, workability, cohesiveness, water retention.Also need satisfy the surperficial impression requirement of haydite simultaneously, so proper design of mixture ratio is particularly important as clear water realization material.Engineering is carried out the model wall before construction construction is tested to match ratio and is grasped the haydite concrete construction technology.

3, the premixing of haydite concrete adopts in situ preparation, and this just requires strict control preparation quality in preparation engineering.In concrete conveying, build and take into account haydite concrete and dry concrete construction requirement when vibrating, guarantee to reach the clear-water concrete Expected Results.

4, the examination requirement and the foundation of joining

The concrete preparation of haydite dry should be satisfied following requirement:

1) surface color meets the requirements: color and luster is even, color is suitable, can demonstrate fully design idea.Presentation quality meets the requirement of clear-water concrete standard after the moulding of clear water finished concrete.

2) good mechanical performance: satisfy the design strength requirement.

3) life requirement: according to life requirement, should be the open-air concrete that influenced by wind and snow, require the maximum water/binder ratio of concrete to be not more than 0.5, minimum cement dosage is not less than 325Kg/m 3, the chlorion maximum level is not more than 0.2%, and the alkali content maximum is not more than 3.0Kg/m 3

4) good construction performance: require slump, workability better to be convenient to construction.Homogeneity is good, the adhesive aggregation performance is good, good flowing properties, not bleeding, not stratified segregation in transportation and the work progress; The green concrete 90min slump is not lost substantially.And should try to join at the characteristics that light aggregate easily floats.

Domestic and international many scholar's research influence the factor of the anti-durability of concrete, show: combined factors such as concrete air content, critical bubble spacing, water/binder ratio, aggregate, critical full water degree and cooling rate have determined concrete freeze proof endurance quality.The selection of concrete air content, water/binder ratio, aggregate can be controlled when carrying out the match ratio design.

The selection of mixture material:

1. cement: select P.O32.5 or P.O42.5 low alkali cement for use.

2. haydite:, select the ball-shaped leca for use according to the design strength grade situation of haydite concrete.Density rating (bulk density) is 600Kg/m 3, belonging to ultralight level haydite, cylindrical compress strength is greater than 5Mpa, and grain type coefficient is 1.5.

Leca shell pore is more, and internal void connection rate is big, and water absorption rate is bigger, and porosity should be greater than 35%, and in the concrete setting process, the moisture of haydite inside can replenish the aquation water in the hydrated cementitious later stage, plays the effect of compensate for shrinkage.The moisture content that the clay haydite is bigger can effectively reduce the early-age shrinkage of haydite concrete, thereby reaches the purpose of control concrete early crack, but notes before construction and will fully prewet.

The come-up of porcelain granule light weight aggregate causes the inside concrete homogeneity to change, and is easy to generate the local defect after the sclerosis, and this also is one of its principal element of applying of restriction.Related data indicates that the haydite that particle diameter surpasses 20mm floats seriously in concrete mix.Adoptable haydite grain composition of engineering such as following table:

As seen from the above table, the haydite particle diameter mainly concentrates between 10~16mm.Promptly control its come-up by the maximum particle diameter of control haydite.

3. sand: fineness modulus is 2.5.

4. water reducing agent: the application of water reducing agent also becomes the indispensable component of concrete, use water reducing agent can reduce concrete water/binder ratio (water-cement ratio) significantly, improve concrete intensity and compactness, the ability of concrete opposing freeze-thaw damage is improved, thereby improve concrete freeze proof durability.

In concrete, add air entraining agent in addition and can improve concrete air content, thereby improve concrete freeze proof endurance quality.But this haydite concrete considers that as the facing of clear-water concrete air entraining agent may increase the concrete surface bubble, influences the clear water effect, so can not adopt gas tracting subtractive agent.

5. admixture: the Ca (OH) that hydrated cementitious generates in ground slag and the concrete 2In conjunction with having potential activity, but ground slag is to improving the present quite a few research of concrete resistance to freezing and thawing.Reach a conclusion by test: along with the increase of fine slag contents, its concrete freezing and thawing performance is poorer, does not therefore consider to select for use ground slag.

Mixing of flyash is not only in order to save cement, and main is in order to improve concrete performance.Some scholars draw by research high-doped fly ash concrete hydration: the volume of flyash and water/binder ratio have influenced the pore structure of high-doped fly ash concrete, and porosity increases along with the increase of volume and water/binder ratio, but prolongation in time, porosity can descend.This is because mixing of flyash improved concrete hole dimension, but maximum doping quantity must not surpass 70%.

6. water: select underground water or tap water for use, satisfy " GB50021-2001 " 12.2.1~12.2.5 regulation, require water to the concrete structure non-corrosiveness.Reinforced concrete member also may be subjected to the effect of corrosive environments such as bar in chlorine salt solution and other chemical substance except that the general environment effect and freeze thawing environment that are subjected to the corrosion of steel bar that carbonization causes, the infiltration of concrete chlorion is considered.Abroad, Verbck draws concrete through experiment has the linear relation that is close to the permeability of chlorion and water/binder ratio.Therefore, satisfying under the prerequisite of construction requirement, should reduce water/binder ratio as far as possible.

Considered the effect of admixture breeze in the mix, adding breeze does not have favourable influence to concrete freeze proof durability, though the bigger haydite concrete of the slump is better mobile, the haydite come-up is more, and the homogeneity of haydite concrete is relatively poor.

A large amount of experiments and the construction of model wall, optimum mix is as shown in the table:

1.7.2, the feeding sequence of haydite dry concrete mix

When light weight aggregate concrete stirs, use the light coarse aggregate of pre-wet process, adopt conventional feeding sequence, stir.

1.7.3, haydite dry concreting

1, casting method:

1) be starting point, with the structure end, earlier build the thick cement mortar identical of 10~20mm with concrete mix at the member root, evenly go into mould with spade, can not be with in suspension bucket or the direct impouring template of pump line, solidify in order to avoid mortar splashes on the template, and vibrate the mortar that hangs on the reinforcing bar gently with vibrating head it is touched down; Before the concreting, laying mortar can not in order to avoid form cold seam between mortar and concrete, influence impression early than the mortar initial setting time, requires to starch with following concrete with sanding, and the solstics laid by mortar and concreting point distance should be controlled at about 3m.

2), the concrete blanking highly should not should be adopted ancillary methods such as string bucket or chute greater than 3m greater than 3m.Accepted scale bar control hierarchy thickness illuminates the template inwall with lamp when carrying on construction work at night during concreting, and layering blanking, layering are vibrated, and every layer concrete is built thickness and is strict controlled in the 400mm.

3), build to constuction joint, promptly outseam bar place after 1 hour removes the laitance on surface, carries out building the second time, builds 10mm place to the outseam bar, guarantees two-layer concrete combination.

4), during concreting, arrange the special messenger that reinforcing bar, built-in fitting and reinforcement cover spacing sticked into row inspection, find that off normal in time proofreaies and correct, check and to continue blanking after confirming.

2, haydite dry concrete vibrating:

The concrete vibration quality directly has influence on compactness and concrete surface impression quality behind the concrete formation, and vibrates and improperly also can influence concrete aberration, and haydite concrete vibrates and mainly takes following control measure:

1), the even blanking of layering during poured in place concrete, vibrating head adopts " fast inserting pulled out slowly ", " quincunx " to layout, and vibrating spear is slightly twitched in the process of vibrating up and down, vibration evenly, make the dissipation of fully floating of bubble in the concrete, can improve concrete density like this and reduce the concrete surface bubble.

2), determine lift height, and carry out scale bar, be equipped with the control device of lighting, guarantee concrete surface color and luster unanimity as the layering blanking according to the vibrating head depth of interaction, inner closely knit.

3), the vibrating spear moving interval is 400mm, and the distance of control and template.Concrete vibrating should vibrate to the edge from the centre, and shaking a little is evenly distributed, and time of vibration must be consistent.

4), when building door and window hole, along the blanking symmetrically of both sides, hole, vibrating head is apart from more than the 300mm of limit, hole; vibrate simultaneously from both sides, for preventing hole distortion, should punch greater than bottom, the hole template of 1.5m; and additional concrete vibrating, there is not bubble to guarantee concrete compaction.Build in the process available hand hammer tapping template side and check, noticing that leaking must not appear in the intensive and position, hole of reinforcing bar shakes, owes to shake or cross and shake.

5), every layer concrete of controlling well intermittent time of building, guarantee constuction joint not occur, accomplish operation continuously and in order.For making the levels concrete be combined into integral body, the upper strata concrete vibrating will carry out before the lower-layer concrete initial set, and required vibrating spear to insert lower-layer concrete 50~100mm.

6), grasp the concrete vibrating time, the long concrete disintegration that easily causes vibrates, the too short concrete vibrating leakiness that easily causes of vibrating, generally be level with concrete surface and even cement paste occur, no longer include when emitting on remarkable sinking and a large amount of bubble and can stop, the concrete vibrating time generally was controlled at about 10~15 seconds.

7), for reducing the concrete surface bubble, adopt secondary to water and smash technology, after concreting is finished, vibrate for the first time, before second layer concreting, vibrate again for the second time, top layer generally vibrates behind 0.5h.

8), in the concreting process, arrange the special messenger to be responsible for guarding template, and often beat wall, the column template of building the position, so that get rid of the bubble that influences concrete appearance as far as possible.

9), in concreting, do not collide various embedded parts, the template of not vibrating, reinforcing bar etc. damage reinforcing bar, template etc. preventing; The mortar and the concrete that are bonded on the horizontal reinforcement should touch down gently.

1.8 plain form is removed, the clear-water concrete reparation

1.8.1 the clear water mould is removed:

1, after reaching 3.0MPa with condition concrete test block intensity, the beginning stripping;

2, the first step is unclamped stem nut through walls earlier, and bar through walls is withdrawn from body of wall; Beat the pin of form clamp with hammer, unclamp form clamp.

3, second go on foot the support of unclamping wall form, template is separated with body of wall;

4,, prize template gently with crowbar and make it to separate during the jail as template and body of wall bonding with body of wall;

5, will break away from the concrete surface template and hang ground, deashing, brushing release agent are in order to turnover.

6, should in time take water spray or covering to carry out maintenance after the concrete form removal, avoid because of dehydration too early, phenomenons such as shrinkage crack, peeling dusting appear in concrete surface.Carry out the maintenance work during the concrete initial set, not only help the growth of early age strength of concrete, and can avoid forming and reducing the aberration of concrete surface.The concrete curing time is no less than 14 days.

1.8.2 clear-water concrete reparation:

After the fair-faced concrete outer wall construction was finished, the split bolt hole of its inner face needed shutoff.Clear-water concrete is in work progress, because a variety of causes, different parts parts such as clear-water concrete facade, external corner, bolt hole and outseam impression defectives such as not straight, rough have been stayed, need to formulate distinct methods and effectively repair, make the outer facade of concrete reach perfect architectural effect.

1.8.3 exterior wall paint cover:

Clear water finished concrete protective coating adopts water-based fluorocarbon resin transparent protective coating, and its technological process is as follows:

Base treatment → part reparation → priming paint brushing → inter coat → surface layer brushing.

Claims (7)

1. construction method of haydite dry concrete wall, it is characterized in that: described job practices comprises the steps:
(1), preparation of construction;
(2), haydite dry concrete match ratio design;
Described haydite dry concrete match ratio design comprises: water-cement ratio 0.38~0.42, and the slump 180~220mm, divergence is greater than 560mm; P.032.5 cement selected for use or low alkali cement P.042.5; Haydite is selected the ball-shaped leca for use, and 75% above haydite particle diameter concentrates between 10~16, and cylindrical compress strength is greater than 5Mpa, and void content is greater than 35%, and the haydite water absorption rate is greater than 10%; Sand is selected medium sand for use, and fineness modulus is 2.5; The hydromining tap water as adopting underground water, must satisfy " GB50021-2001 " 12.2.1~12.2.5 and stipulate the concrete structure non-corrosiveness; Water reducing agent is selected naphthalene water reducer for use, adds air entraining agent in the concrete and can improve concrete air content, increases the concrete surface bubble, influences the clear water effect, does not adopt gas tracting subtractive agent.
(3), plain form design;
(4), colligation enclosure wall reinforcing bar;
(5), lay inside thermal conservation material;
(6), plain form is installed;
(7), the haydite concrete stirs, transports, builds;
(8), plain form dismounting, clear water concrete curing, reparation;
(9), exterior wall cover;
(10), inspect for acceptance.
2. construction method of haydite dry concrete wall according to claim 1, it is characterized in that: prick the silk redundance when described colligation enclosure wall reinforcing bar comprises the steps: colligation and bend inwards, double muscle outside correspondence is tied up plastic cushion, be quincuncial arrangement, tie up two road positioning bars more during the colligation of body of wall horizontal bar, exceed structural level 400mm.
3. construction method of haydite dry concrete wall according to claim 1 and 2; it is characterized in that: after described enclosure wall reinforcing bar binding finishes; the main reinforce position of proofreading and correct the door and window hole node is to guarantee the thickness of topping; on the sleeper muscle at hole, accomplish fluently the absolute altitude line; the thickness of control topping; when doorframe and window frame was installed, weld upper, middle and lower three road reinforcing bars at the hole spacing.
4. construction method of haydite dry concrete wall according to claim 1 and 2 is characterized in that: described plain form design comprises the steps:
(1), wall mould the construction line-putting;
(2), joist colligation, latent inspection, build the foreign material cleaning of concrete place;
(3), wall mould location plastic bushing or the setting of conehead positioning bolt, pre-embedded pipe, the installation of line box, curtain wall built-in fitting;
(4), wall form accessory installation, brushing release agent, operating platform are set up;
(5), check the template control line;
(6), according to wall mould the construction line-putting and template numbering, ready formwork hoisting is gone into the position;
(7), template is hung suitable position, by screw rod through walls on the plastic sleeve band of location or by can the section of turnover bolt on the tapered joint headgear of positioning bolt, and preliminary fixing;
(8), adjust the verticality and the piece of template;
(9), lock form clamp, lock nut through walls;
(10), check and to require the formwork erection situation part is reinforced according to node.
5. construction method of haydite dry concrete wall according to claim 3 is characterized in that: described plain form design comprises the steps:
(1), wall mould the construction line-putting;
(2), joist colligation, latent inspection, build the foreign material cleaning of concrete place;
(3), wall mould location plastic bushing or the setting of conehead positioning bolt, pre-embedded pipe, the installation of line box, curtain wall built-in fitting;
(4), wall form accessory installation, brushing release agent, operating platform are set up;
(5), check the template control line;
(6), according to wall mould the construction line-putting and template numbering, ready formwork hoisting is gone into the position;
(7), template is hung suitable position, by screw rod through walls on the plastic sleeve band of location or by can the section of turnover bolt on the tapered joint headgear of positioning bolt, and preliminary fixing;
(8), adjust the verticality and the piece of template;
(9), lock form clamp, lock nut through walls;
(10), check and to require the formwork erection situation part is reinforced according to node.
6. construction method of haydite dry concrete wall according to claim 1 and 2 is characterized in that: described haydite concrete stirs, transport, build and comprise the steps:
(1), preparation haydite dry concrete mix;
(2), throw in the haydite dry concrete mix;
(3), build the haydite dry concrete.
7. construction method of haydite dry concrete wall according to claim 3 is characterized in that: described haydite concrete stirs, transport, build and comprise the steps:
(1), preparation haydite dry concrete mix;
(2), throw in the haydite dry concrete mix;
(3), build the haydite dry concrete.
CN2008101470070A 2008-08-12 2008-08-12 Construction method of haydite dry concrete wall CN101338595B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2008101470070A CN101338595B (en) 2008-08-12 2008-08-12 Construction method of haydite dry concrete wall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2008101470070A CN101338595B (en) 2008-08-12 2008-08-12 Construction method of haydite dry concrete wall

Publications (2)

Publication Number Publication Date
CN101338595A CN101338595A (en) 2009-01-07
CN101338595B true CN101338595B (en) 2010-07-28

Family

ID=40212751

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2008101470070A CN101338595B (en) 2008-08-12 2008-08-12 Construction method of haydite dry concrete wall

Country Status (1)

Country Link
CN (1) CN101338595B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101818571A (en) * 2010-04-16 2010-09-01 国家电网公司 Method for building wall
CN102021999A (en) * 2010-12-30 2011-04-20 山西四建集团有限公司 Construction method of hard composite glass steel template for arc-shaped water-clearing concrete nodes
CN102409799B (en) * 2011-11-25 2013-05-29 北京市第三建筑工程有限公司 Fair-faced concrete interlaminar open joint guide wall structure and construction method thereof
CN103643793B (en) * 2013-12-11 2018-07-27 中国建筑第八工程局有限公司 A kind of ultra-thin steel and wood composite template system for magma dry concrete construction
CN103669357A (en) * 2013-12-20 2014-03-26 浙江省第一水电建设集团股份有限公司 Gate-pier fair-faced concrete one-off forming construction method
CN103938758B (en) * 2014-04-22 2015-12-02 巨匠建设集团有限公司 The preparation method of the concavo-convex graining body of wall of a kind of clear-water concrete
CN104003677A (en) * 2014-05-21 2014-08-27 中铁建设集团有限公司 Lightweight air-entrained aggregate concrete and preparation method thereof
WO2016047500A1 (en) * 2014-09-25 2016-03-31 東洋アルミニウム株式会社 Framework for concrete forming, concrete formed body formed by same, concrete structure using concrete formed body, method for producing concrete formed body, and method for producing concrete structure
CN104532987A (en) * 2014-12-15 2015-04-22 天津天一建设集团有限公司 Construction method of bare concrete wall internally provided with heat insulation layer
CN105345918A (en) * 2015-09-25 2016-02-24 安徽海龙建筑工业有限公司 Production method for coated bare concrete
CN106245827A (en) * 2016-08-30 2016-12-21 中建八局第四建设有限公司 A kind of shear wall construction method
CN108894367A (en) * 2018-08-27 2018-11-27 河南省第二建设集团有限公司 A kind of cast-in-place fair-faced concrete external wall system and its construction technology

Also Published As

Publication number Publication date
CN101338595A (en) 2009-01-07

Similar Documents

Publication Publication Date Title
EP1183218B1 (en) Lightweight concrete
CN105421652B (en) A kind of composite thermo-insulating wall board
CN101818539B (en) Assembled integral building and construction method thereof
CN102116061B (en) Masonry construction method for filling wall core pillar, core girder and building blocks into framework structure
CN103290753A (en) Nano-composite environment-friendly water permeable brick and production method thereof
CN103693928B (en) Autoclaved aerated concrete plate produced by using Yellow River sand, and production method thereof
CN103898831B (en) A kind of precast splice type arch rib of ultra-high performance concrete and fabrication and installation method thereof
CN104594210B (en) A kind of concrete prefabricated board and its preparation method and application
CN100398480C (en) High-strength cement mortar and construction process for pouring said mortar thereof
CN200968053Y (en) Reinforced concrete detaching-free formwork
CN103570317B (en) A kind of clear-water concrete using construction refuse regenerated aggregate to produce
CN100572011C (en) Post-tensioned method prestressed concrete box beam whole opening prefabricated construction method
CN201738600U (en) Assembled integrated type building
CN103321257A (en) Anti-cracking seepage-proof construction method for ultra-long mass concrete structure basement
CN100385083C (en) Light compound side fascia and its manufacturing method
CN103104094B (en) Construction method of lattice light-gauge steel house
CN101016759B (en) Fiver cement board grouting wall and construction method therefor
CN103193446B (en) Method for producing waste residue foam concrete and nanopore vacuum plate composite material
CN103883026B (en) The construction method of the cast-in-situ thermal-insulated composite outer wall system of green energy conservation
CN103899088B (en) Large span ultra-thin overlength cast-in-situ clear-water concrete Slate hanging construction method
CN102900162B (en) Heat-insulation fireproof integral wallboard and preparation method thereof
CN101858114A (en) Construction method for cast-in-place integral light-weight partition wall
CN102251662B (en) Cast-in-place process for ultra light foamed cement-based bearing heat insulation wallboard
CN2823386Y (en) Energy saving building external protection structure composite heat insulation wall
CN101255717B (en) Construction technique for building block and wall board

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100728

Termination date: 20180812

CF01 Termination of patent right due to non-payment of annual fee