CN106284693B - A kind of construction method of powdery sealing permeability-reducing admixture - Google Patents

A kind of construction method of powdery sealing permeability-reducing admixture Download PDF

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Publication number
CN106284693B
CN106284693B CN201610718104.5A CN201610718104A CN106284693B CN 106284693 B CN106284693 B CN 106284693B CN 201610718104 A CN201610718104 A CN 201610718104A CN 106284693 B CN106284693 B CN 106284693B
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reducing admixture
powdery sealing
sealing permeability
construction method
permeability
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CN106284693A (en
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何立明
刘国良
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66—Sealings
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C04B26/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
    • C04B2111/00284—Materials permeable to liquids
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Sealing Material Composition (AREA)

Abstract

The present invention relates to a kind of powdery sealing permeability-reducing admixture and using the construction method of the powdery sealing permeability-reducing admixture, the powdery sealing permeability-reducing admixture is mixed for supplementary material by silica, polytetrafluoroethylene (PTFE), talcum powder and grinds and be made；The construction technique step of the powdery sealing permeability-reducing admixture are as follows: first carry out the cleaning in crack, then carry out the construction to waterproof layer, increase bed course as needed on waterproof layer, finally need to protective layer be also set on waterproof layer or bed course and conserve.Powdery sealing permeability-reducing admixture of the invention and using powdery sealing permeability-reducing admixture construction method produce and use in low energy consumption, without waste water, without exhaust gas, pollution-free, it is easy to use.

Description

A kind of construction method of powdery sealing permeability-reducing admixture
Technical field:
The present invention relates to a kind of construction methods of powdery sealing permeability-reducing admixture.
Background technique:
Now, in metallurgy, chemical industry is anti-pollution, antiseepage, pipeline waterproof, all uses permeability-reducing admixture, while work in terms of mine waterproof Industry and civil buildings, municipal administration, bridge, subway, tunnel, dam, the use of permeability-reducing admixture in the waterproof, seepage controls engineering such as golf course Also more and more extensive, so the requirement to permeability-reducing admixture is also higher and higher.Existing permeability-reducing admixture exists at anti-aging, anti-oxidant aspect Defect, and weatherability and stability are poor, usually occur because of waterproof layer cracking problem caused by expanding with heat and contract with cold.Using antiseepage Step is complicated when agent is constructed, it is more difficult to operate.
Summary of the invention:
Against the above technical problems, the present invention provides one kind to be widely used, the excellent powdery sealing antiseepage of performance characteristics Agent, including as major ingredient hydrophobic type silica and auxiliary material；Mass percent >=3% of the hydrophobic type silica；It is described Auxiliary material is that polytetrafluoroethylene (PTFE), talcum powder, barite, lead powder, cement, calcium carbonate is one such or any combination；By major ingredient and Auxiliary material is mixed 30-45 minutes, and after then grinding 90-120 minutes, sieving, granularity 200-400 mesh is finally packed. The product is nontoxic, tasteless, free of contamination green product.
The present invention also provides a kind of construction methods using powdery sealing permeability-reducing admixture, for width splitting greater than 0.5cm Seam, comprising the following steps:
A. it is greater than the crack of 0.5cm using special equipment cutting width, then is cleared up, it is desirable that no-sundries, nothing in crack Loose or dislocation, without ponding；
B. powdery sealing permeability-reducing admixture is filled using dedicated filling equipment, forms waterproof layer, and is levelling and smash It rams；
C. laying and the wide non-woven fabrics that can be degraded in crack, are then laid with the fine sand or quartz sand of 2-3cm, form one A two layers of bed course；
D. 1: 2.5 cement mortar protective course with a thickness of 2-3cm is done on bed course.
Further, the filling thickness of the waterproof layer of the step b is 2-3cm.
Further, protective layer is smeared into two times in the step d, and two layers of joint part are staggered, and protective layer requirement is smooth, and Sprinkling maintenance.
Further, the bed course upper surface in the Step d can also apply silicone sealant or modified pitch as guarantor Sheath.
The present invention also provides a kind of construction methods using powdery sealing permeability-reducing admixture, for width splitting less than 0.5cm Seam and random Craquelure, comprising the following steps:
A. pneumatic cleaning crack is carried out using special equipment；
B. vibration device is smash using plate and smash vibration in powdery sealing permeability-reducing admixture filling crack, form the waterproof layer in crack；
C. after the completion of waterproof layer, fracture is polished and is cleaned out containing capping, is then done again with a thickness of 0.5-1cm's The smooth protective layer of 1: 2.5 cement mortar, and sprinkling maintenance.
Further, dedicated perfusion equipment also can be used by dehydrated alcohol dissolution in the waterproof layer in the b step Powdery sealing permeability-reducing admixture afterwards is irrigated, then is spontaneously dried 2-4 hours.
Further, priming paint can also be brushed one times on the waterproof layer of the step c, surface oil is brushed one times after priming paint has been done Qi Zuowei protective layer.
Compared with prior art, usefulness of the present invention is: this product in production and application low energy consumption, without waste water, nothing It is exhaust gas, pollution-free, it is easy to use.Have the characteristics that well it is anti-aging, anti-oxidant, can have with the same equivalent life of building structure Good weatherability and stability are solved the problems, such as because of waterproof layer cracking caused by expanding with heat and contract with cold.Good product mobility, stocking angle It is small, require construction environment that low, construction temperature range is wide, easy to operate, it is easy for construction.Waterproof, barrier performance are significant.
Specific embodiment:
A kind of powdery sealing permeability-reducing admixture, including as major ingredient hydrophobic type silica and auxiliary material；The hydrophobic type titanium dioxide Mass percent >=3% of silicon；The auxiliary material is polytetrafluoroethylene (PTFE), talcum powder (bulk density 0.3), barite, lead powder, water Mud, calcium carbonate is one such or any combination, wherein and hydrophobic type silica and polytetrafluoroethylene (PTFE) are all glidants, if Hydrophobic type silica price is high in the market, can be under the premise of meeting hydrophobic type silica proportion lower limit not less than 3% The former is substituted with the latter；Major ingredient and auxiliary material are mixed 30-45 minutes, after then grinding 90-120 minutes, sieving, granularity 200-400 mesh, is finally packed.
The powdery sealing permeability-reducing admixture bulk density is needed according to construction condition can be by replacement different densities Auxiliary material is adjusted, when execution conditions at the construction field (site) need to increase the powdery sealing permeability-reducing admixture bulk density, Ke Yishi With density big auxiliary material such as lead powder, quartz etc., execution conditions at the construction field (site) need to reduce the powdery sealing permeability-reducing admixture When bulk density, the big auxiliary material of density such as talcum powder etc. can be applicable in.
Case study on implementation 1: silica is 5 grams, and polytetrafluoroethylene (PTFE) is 5 grams, and talcum powder is 90 grams.
Case study on implementation 2: silica is 10 grams, and polytetrafluoroethylene (PTFE) is 7 grams, and talcum powder is 83 grams.
Case study on implementation 3: silica is 15 grams, and polytetrafluoroethylene (PTFE) is 10 grams, and talcum powder is 75 grams.
Width is greater than the crack of 0.5cm, uses the construction method of powdery sealing permeability-reducing admixture, comprising the following steps:
A. cleaning crack is carried out after cutting using special equipment, it is desirable that no-sundries, non-loosening fall off, without ponding in crack.
B. it is filled using dedicated filling equipment, filling thickness 2cm, it is then levelling and suitably smash rammer.
C. bed course shares two layers, then laying and the wide non-woven fabrics that can be degraded in crack first is laid with the thin of 2cm Husky or quartz sand, it is levelling and tamp.
D. after setting cushion, 1: 2.5 cement mortar protective course with a thickness of 2cm need to be done on bed course, is smeared in two times At two layers connect stubble and must be staggered, and protective layer requires smooth, and sprinkling maintenance or apply in bed course upper surface or changes silicone sealant Property pitch.
Crack of the width less than 0.5cm and random Craquelure, using the construction method of powdery sealing permeability-reducing admixture, including Following steps:
A. pneumatic cleaning crack is carried out using special equipment.
B. vibration device is smash using plate and smash vibration and fill powdery sealing permeability-reducing admixture in crack, formed crack waterproof layer or It is irrigated using dedicated perfusion equipment the dissolved powdery sealing permeability-reducing admixture of dehydrated alcohol is passed through, then spontaneously dries 2-4 Hour.
C. after the completion of waterproof layer, fracture is polished and is cleaned out containing capping, then does again with a thickness of the 1 of 0.5cm : the smooth protective layer of 2.5 cement mortar, and sprinkling maintenance or priming paint can also be brushed one times on waterproof layer, after priming paint has been done Surface paint is brushed one times as protective layer.
It is emphasized that: the above is only presently preferred embodiments of the present invention, not make in any form to the present invention Limitation, any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the invention, All of which are still within the scope of the technical scheme of the invention.

Claims (7)

1. a kind of construction method of powdery sealing permeability-reducing admixture, it is characterised in that: powdery sealing permeability-reducing admixture, including it is hydrophobic as major ingredient Type silica and auxiliary material；Mass percent >=3% of the hydrophobic type silica；The auxiliary material is polytetrafluoroethylene (PTFE), cunning Mountain flour, barite, lead powder, cement, calcium carbonate is one such or any combination；Major ingredient and auxiliary material are mixed 30-45 points Clock, after then grinding 90-120 minutes, sieving, granularity 200-400 mesh is finally packed；
The construction method of the powdery sealing permeability-reducing admixture is greater than the crack of 0.5cm for width, comprising the following steps:
A. it is greater than the crack of 0.Scm using special equipment cutting width, then is cleared up, it is desirable that no-sundries, non-loosening in crack It falls off, without ponding；
B. powdery sealing permeability-reducing admixture is filled using dedicated filling equipment, forms waterproof layer, and is levelling and carry out smashing rammer；
C. laying and the wide non-woven fabrics that can be degraded in crack, are then laid with the fine sand or quartz sand of 2-3cm, form one two The bed course of layer；
D. 1: 2.5 cement mortar protective course with a thickness of 2-3cm is done on bed course.
2. the construction method of powdery sealing permeability-reducing admixture according to claim 1, it is characterized in that in the waterproof of the step b The filling thickness of layer is 2-3cm.
3. the construction method of powdery sealing permeability-reducing admixture according to claim 1, it is characterized in that in being protected in the step d Layer is smeared into two times, and two layers of joint part are staggered, and protective layer requirement is smooth, and sprinkling maintenance.
4. the construction method of powdery sealing permeability-reducing admixture according to claim 2, it is characterized in that in pad in the Step d Layer upper surface applies silicone sealant or modified pitch as protective layer.
5. a kind of construction method of powdery sealing permeability-reducing admixture, it is characterised in that: powdery sealing permeability-reducing admixture, including it is hydrophobic as major ingredient Type silica and auxiliary material；Mass percent >=3% of the hydrophobic type silica；The auxiliary material is polytetrafluoroethylene (PTFE), cunning Mountain flour, barite, lead powder, cement, calcium carbonate is one such or any combination；Major ingredient and auxiliary material are mixed 30-45 points Clock, after then grinding 90-120 minutes, sieving, granularity 200-400 mesh is finally packed；
The construction method of the powdery sealing permeability-reducing admixture, crack and random Craquelure for width less than 0.5cm, including Following steps:
A. pneumatic cleaning crack is carried out using special equipment；
B. vibration device is smash using plate and smash vibration in powdery sealing permeability-reducing admixture filling crack, form the waterproof layer in crack；
C. after the completion of waterproof layer, fracture is polished and is cleaned out containing capping, then does again with a thickness of the 1 of 0.5-1cm: The smooth protective layer of 2.5 cement mortar, and sprinkling maintenance.
6. the construction method of the powdery sealing permeability-reducing admixture according to claim 5, which is characterized in that the b step In waterproof layer dedicated perfusion equipment can be used being irrigated by the dissolved powdery sealing permeability-reducing admixture of dehydrated alcohol, from It is so 2-4 hours dry.
7. the construction method of the powdery sealing permeability-reducing admixture according to claim 5, which is characterized in that the step c Waterproof layer on can also brush one times priming paint, surface paint is brushed one times after priming paint has been done as protective layer.
CN201610718104.5A 2016-08-25 2016-08-25 A kind of construction method of powdery sealing permeability-reducing admixture Active CN106284693B (en)

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Publication number Priority date Publication date Assignee Title
CN109574591B (en) * 2018-12-21 2021-10-26 科顺防水科技股份有限公司 Leveling mortar with waterproof function

Citations (1)

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Publication number Priority date Publication date Assignee Title
CN105462304A (en) * 2015-12-25 2016-04-06 常熟市奇越新型建材科技有限公司 Dry powder coating material

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JP3230204B2 (en) * 1999-05-28 2001-11-19 ヤマト工業株式会社 Repair method for waterproofing and waterproofing of concrete structures
CN1291676A (en) * 1999-10-12 2001-04-18 安固国际企业股份有限公司 Method for repairing crack of reinforced concrete
CN101545320B (en) * 2008-03-25 2012-01-11 宝山钢铁股份有限公司 Method for compensation and anti-permeation of temperature difference cracks of ground concrete high-temperature pool
CN101654351A (en) * 2009-09-17 2010-02-24 苏州同济材料科技有限公司 Cement-based permeable crystallization type waterproof material
CN102718455B (en) * 2012-07-02 2013-07-24 安徽朗凯奇建材有限公司 Cement based capillary crystalline high-performance waterproofing powder and application thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105462304A (en) * 2015-12-25 2016-04-06 常熟市奇越新型建材科技有限公司 Dry powder coating material

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