CN103496936A - Assembly type building component joint gypsum base sealing material and application thereof - Google Patents
Assembly type building component joint gypsum base sealing material and application thereof Download PDFInfo
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Abstract
The invention relates to an assembly type building component joint gypsum base sealing material and application thereof. The assembly type building component joint gypsum base sealing material comprises, by weight, 100 parts of waste gypsum, 20-200 parts of active admixture, 0.01-10 parts of water reducer, 0.1-50 parts of excitant, 0-10 parts of thickening control agent, 0-30 parts of binder, 0-10 parts of air entraining agent, 0.01-30 parts of plastic retaining agent, 0.01-10 parts of water repellent, 0-5 parts of starch ether, 0-10 parts of thixotropic lubricant, 0-150 parts of powder filler and 0-300 parts of aggregate, and can be applied to joint sealing after being mixed with water uniformly. Compared with the prior art, the assembly type building component joint gypsum base sealing material has the advantages of convenience in use, good filling ability, high binding power, durability, low cost and the like. In the sealing material, much industrial waste gypsum is used as gelatinization materials, so that performance of sealing mortar can be improved, material cost is reduced, pollution control and emission reduction are facilitated, and a new way for resource utilization of the industrial waste gypsum is provided.
Description
Technical field
The invention belongs to material of construction and technical field of building construction, especially relate to a kind of assembled architecture member splicing seams gypsum base sealing material and application thereof.
Background technology
Prefabricated concrete structure with cast-in-place concrete structure, compare have reduce situ wet workload, speed of application fast, save material, be conducive to building industrialization, economy and the advantage such as social environment benefit is good, so the expert of engineering circles actively advocates the application prefabricated concrete structure.
The peculiar advantage of prefabricated structure need not suspect, problem is how to ensure the performance that connects between prefabricated components and the performance of structural entity.Level and the vertical abutment joint of assembled large panel external wall plate. be the weak link of waterproof.If deal with improperly, just be easy to occur seepage, its main reason is that incorrect member seam areas joint filling eakiness or the material contracts cracking of causing of joint filler poor performance and constructional method forms gap, causes rainwater to infiltrate in seam and causes.The most frequently used mode of member joint treatment is to adopt common dry sand-cement slurry to adopt plaster trowel to carry out the processing of pointing stuff up a crack at present, because the cohesive force of conventional cement mortar is extremely low, with can not form effective the connection between concrete member, and the easy shrinkage cracking of Portland cement, be easy to occur Seepage.Adopt on the other hand the dry mortar stuff up a crack to process and be difficult to fill full whole seam, also aggravated the risk of seam seepage, it should be noted that in addition the efficiency of this material of employing and form of construction work thereof is also very low.Also have at present and adopt polymer typing sealing material butt seam to carry out the mode of encapsulation process, but due to the error produced in the member splicing, bring difficulty can to the installation of typing sealing material, often in the sealed strip process is installed, need to adopt the wooden mallet hamming type to install, labour intensity is large, and the sealed strip outward appearance is also easily impaired.This type of sealing material itself is not ageing-resistant yet, easily produces distortion after life-time service, comes off and Seepage occurs.
Thermal power generation be take as main in China, contain a large amount of sulfurous gas in coal-fired flue-gas, environment is caused to very large pollution, therefore the Chinese government attaches great importance to the environmental practice of coal fired power plant flue gas desulfurization, 2010, China has the coal fired power generation unit of 4.6 hundred million kilowatts that flue gas desulfurization (FGD) unit is installed, and within 2010, China's desulfurated plaster quantity discharged reaches 5,200 ten thousand tons.In addition, China produces 1100 ten thousand tons, phosphate fertilizer per year, annually also will discharge 4,000 ten thousand tons of phosphogypsums that belong to chemical gypsum with desulfurated plaster together, and phosphogypsum must be accumulated for many years and reached several hundred million tons.The utilization ratio of China's desulfurated plaster, phosphogypsum is also very low at present, if new purposes is not innovated, opened up to the treatment technology of waste gypsum, comprehensively fully utilizes, and must cause secondary pollution.
Gypsum plaster is a kind of air-setting inorganic coagulation material that calcium sulfate is main component of take, wherein, take semi-hydrated gypsum as the main component plaster of Paris most widely used general.Plaster of Paris has the characteristics such as fast solidifying, the volume microdilatancy of when sclerosis, fire resistance are good, poor water resistance.Make good use of the advantage that the gypsum sclerosis is not shunk, fire line is good, prior art shows to adopt gypsum, active admixture and alkali-activator can prepare gypsum-base hydraulicity composite gel material, can overcome well the poor shortcoming of water-proof gypsum.Therefore, usining waste gypsum, to prepare joint sealers as main gelling material be feasible.
The chemical gypsums such as desulfurated plaster, phosphogypsum of take provide a new approach that utilizes as main gelling material prepares recycling that assembled architecture member splicing seams gypsum base seal sand slurry is waste gypsum, not only are conducive to pollution treatment and reduce discharging, reduce material cost; The novel water tolerance gypsum base sealing material of preparation can solve the sealing problem of assembled architecture member seam well, can ensure the overall performance connected between prefabricated components.
The Chinese patent that application number is 201310062233.x discloses assembled architecture member splicing seams sealing material and application thereof, the raw material adopted includes: cement 100, active admixture 0-150, water reducer 0.01-10, hardening accelerator 0.01-10, adjustable solidification agent 0-10, swelling agent 0.1-30, binding agent 0-30, plasticity-retention agent 0.01-30, starch ethers 0.01-10, thixotroping lubricant 0-10, quartz sand 0-300, this kind of joint sealers has many advantages, but the some shortcomings part is also arranged, for preventing the cement slurry shrinkage cracking, in slurry, admixture has swelling agent to divide, this component easily causes the loss of sealing fluidity of slurry, when adopting the extrusion molding construction, the slurry resistance increases, to having relatively high expectations of preparation of construction.For above deficiency, take full advantage of waste gypsum lightweight, sclerosis is not shunk, workability is good and cost is low advantage, adopting the trade wastes such as desulfurated plaster, phosphogypsum is the novel gypsum splicing seams sealing material that main gelling material can prepare, with the cement based sealing material, compare, the present invention has lightweight, and workability is good, extrudes resistance little, the characteristics such as construct easier, this material also has the advantages such as fire line is good, sound-absorbing, damping.Simultaneously, adopt the waste gypsum place of cement can reduce in a large number energy consumption and the Carbon emission in cement production process as main gelling material, and can reduce material cost.Therefore the present invention is a kind of low-cost environmental friendliness shaped material.
Summary of the invention
Purpose of the present invention be exactly in order to overcome the defect that above-mentioned prior art exists, provide a kind of take that waste gypsum is main gelling material easy to use, fillibility good, adhesive power is strong, good endurance, lower-cost water tolerance gypsum base sealing material and the application thereof that is applicable to assembled architecture prefabricated components joint seal.
Purpose of the present invention can be achieved through the following technical solutions:
Assembled architecture member splicing seams gypsum base sealing material, be comprised of the raw material of following component and weight part content: waste gypsum 100, active admixture 20-200, water reducer 0.01-10, exciting agent 0.1-50, adjustable solidification agent 0-10, binding agent 0-30, air entrapment agent 0-10, plasticity-retention agent 0.01-30, hydrophober 0.01-10, starch ethers 0-5, thixotroping lubricant 0-10, powder filler 0-150, aggregate 0-300.
As preferred embodiment, the sealing material adopts the raw material of following component and weight part content to form: waste gypsum 100, active admixture 50-150, water reducer 0.1-5, exciting agent 1-20, adjustable solidification agent 0-5, binding agent 1-10, air entrapment agent 0.05-3, plasticity-retention agent 0.1-15, hydrophober 0.1-5, starch ethers 0.05-5, thixotroping lubricant 0-10, powder filler 30-80, aggregate 30-200.
The industrial residue phosphogypsum that waste gypsum is power plant or Steel Plant's flue gas desulfurization byproduct desulfurated plaster or phosphoric acid or Phosphate Fertilizer Industry discharge.
Active admixture is selected from one or more in flyash, slag powders, silicon ash or colliery powder.
Water reducer is selected from one or more in sulfonated lignin, beta-methylnaphthalene sulfonate polycondensate, melamino-formaldehyde polycondensate or polycarboxylate dehydragent.
Exciting agent is selected from one or more in sodium sulfate, water glass, Starso, sodium aluminate, calcium chloride, calcium oxide, calcium hydroxide or cement.
Adjustable solidification agent is selected from one or more in citric acid and salt, tartrate and salt thereof, sodium tetraborate, Sodium hexametaphosphate 99, sodium polyphosphate.
Binding agent is pva powder or redispersable latex powder.
Air entrapment agent is selected from one or more in the sodium salt compound, soap compounds, sulfonation hydrocarbon polymer, alkyl one phenmethyl Sulfonates compound, triterpenoid saponin tensio-active agent of rosin tree lipid.
Plasticity-retention agent is selected from one or more in wilkinite, diatomite, methylcellulose gum, methyl hydroxyethylcellulose ether, methylhydroxypropylcellulose ether, hydroxyethyl ether cellulose, carboxymethyl cellulose or lignocellulose.
Hydrophober is one or both in waterproofing agent of organosilicon powder, stearate.
Starch ethers is common starch ether or treated starch ether.
The thixotroping lubricant is sheet silicate minerals material.
Powder filler is one or more in silica powder, Paris white, grey calcium powder, potter's clay, talcum powder or mica powder.
Aggregate is selected from grating artificial sand or natural sand, pottery sand, pearlstone, expanded vermiculite, glass bead, polystyrene foam particles, one or more in zeolite, float stone, volcanic cinder or tufa.
As preferred embodiment, flyash is high-calcium fly ass.
As preferred embodiment, redispersable latex powder is selected from the multipolymer of ethylene/vinyl acetate, ethene and vinylchlorid and vinyl laurate terpolymer rubber powder, vinyl acetate and ethene and higher fatty acid vinyl acetate terpolymer rubber powder, vinyl acetate and higher fatty acid vinyl acetate copolymerization rubber powder, acrylate and styrene copolymerized rubber powder, vinyl acetate and acrylate and higher fatty acid vinyl acetate terpolymer rubber powder, one or more in vinyl acetate homopolymerization rubber powder or vinylbenzene and butadiene copolymer rubber powder.
Assembled architecture member splicing seams gypsum base sealing material can be applied to joint seal, specifically comprises the following steps:
(1) clog back lining materials in the seam of needs sealing, and control the degree of depth of sealing material pointing;
(2) in proportion water is mixed with the gypsum base sealing material, the water yield is controlled at the 20-30% of gypsum base sealing material weight, stirs 3-5min and obtains uniform seal sand slurry slurry;
(3) employing caulking gun or putty knife in seam, are repaired seal sand slurry slurry pointing before surface drying with putty knife, complete the encapsulation process of butt seam.
Filling removes the floating ash of seam crossing before back lining materials or the rear removal of prewetting is swum.
Back lining materials adopts the porous plastics of semi-rigid, for example foamed polyethylene plastics, styrofoam plastics, also can adopt wood materials, and shape has circle, bar-shaped or square tabular, when filling, circular its diameter of bar-shaped back lining materials should be a bit larger tham joint gap 1～2mm.As more shallow as seam, available flat isolating bar.
Sealing material can be used caulking gun or putty knife pointing, and pointing should be full, and bubble and hole must not be arranged.While adopting the caulking gun pointing, should select the nozzle that bore is suitable according to the width of seam, evenly extrude the sealing material pointing, and be full of gradually whole seam by bottom.While adopting the putty knife construction, should first a small amount of sealing material be criticized and scrape in the slot both sides, gradation in seam, and prevents that capsule from entering air by the sealing material pointing.Joint should adopt oblique raft, after the sealing material pointing, should before surface drying, with putty knife, be repaired, and the self-watering stirring obtains the seal sand slurry slurry and starts to calculate, and completes the time of encapsulation process technique in 40-60 minute.
Compared with prior art, the present invention has the following advantages:
1, this material has good workability, and adds water and stirs and can use, and can adopt the caulking gun rapid construction, and operable time is long, and fresh paste has good plasticity, adhesive power and anti-pendant slip, also not there will be the sagging phenomenon when filling the vertical direction splicing seams.
2, with the Portland cement sill, compare, the outstanding advantage of gypsum based gel material is not shrink, the sealing material good stability, and the sealing material adhesion is strong, can form strong bonding with prefabricated components, overcome the conventional cement mortar sealing and easily produced shortcomings such as ftractureing, seep water, come off, can ensure the globality connected between prefabricated components.
3, this gypsum base sealing material has the hydraulicity, overcome the shortcoming of gypsum material poor water resistance, and, after WATER REPELLENT, itself has hydrophobicity material, not there will be the water suction Seepage.
4, contain a large amount of high thermal resistance components in this material, increase the thermal resistance of pointing, can avoid occurring cold-heat bridge everywhere in the member seam to there is energy-saving effect.
5, this material is usingd the waste gypsum place of cement as main gelling material, can reduce material cost, and utilized other industrial residues such as slag powders, flyash as active admixture, also can receive a large amount of solid waste to provide a new way for its recycling simultaneously.
6. owing to needing to consume a large amount of energy carbonic acid gas of amplification quantity side by side in cement production process, produce 1 ton of silicate cement and can discharge 1 ton of carbonic acid gas, the present invention adopts waste gypsum substituted for silicon acid salt cement will reduce the discharge of great amount of carbon dioxide, has effects of energy saving and emission reduction significantly.
7, the sealing material be take inorganic materials as main component, good endurance, does not have problem of aging, also belongs to non-combustible materials simultaneously.
8, this material is not containing harmful solvent, radioactive substance, harmless, free from environmental pollution, belongs to ep-type material.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
Embodiment 1
Assembled architecture member splicing seams gypsum base sealing material adopts following moiety:
Waste gypsum (two water desulfurated plasters) 100, active admixture (S95 slag micropowder) 150, water reducer (polycarboxylate water-reducer) 0.5, exciting agent (Starso) 5, binding agent (vinyl acetate/ethylene copolymer rubber powder) 8, plasticity-retention agent (lignocellulose) 2.0, plasticity-retention agent (diatomite) 20, starch ethers 1.0, hydrophober (silicone powder) 0.5, thixotroping lubricant 0.8, aggregate (quartz sand 10-20 order) 80, aggregate (quartz sand 30-60 order) 50, aggregate (moisture proof expansive Pearle 1-3mm) 15.
Preparation method: by formula, take various starting material, add successively aggregate (quartz sand, pearlstone), waste gypsum, active admixture (slag micropowder), water reducer (polycarboxylate water-reducer) in stirrer, exciting agent (Starso), binding agent (vinyl acetate/ethylene copolymer rubber powder binary copolymerization rubber powder), plasticity-retention agent (lignocellulose, diatomite), starch ethers, hydrophober (silicone powder) and thixotroping lubricant, stir, packing forms product.
Assembled architecture member splicing seams gypsum base sealing material can be applied to joint seal, specifically comprises the following steps:
(1) clog back lining materials in the seam of needs sealing, and control the degree of depth of sealing material pointing, filling removes the floating ash of seam crossing before back lining materials or the rear removal of prewetting is swum, the back lining materials adopted adopts the porous plastics of semi-rigid, for example foamed polyethylene plastics, styrofoam plastics, also can adopt wood materials, and shape has circle, bar-shaped or square tabular, when filling, circular its diameter of bar-shaped back lining materials should be a bit larger tham joint gap 1～2mm.As more shallow as seam, available flat isolating bar;
(2) in proportion water is mixed with the gypsum base sealing material, the water yield is controlled at 20% of gypsum base sealing material weight, stirs 3min and obtains uniform seal sand slurry slurry;
(3) in seam, pointing should be full, and bubble and hole must not be arranged by seal sand slurry slurry pointing for employing caulking gun or putty knife.While adopting the caulking gun pointing, should select the nozzle that bore is suitable according to the width of seam, evenly extrude the sealing material pointing, and be full of gradually whole seam by bottom.While adopting the putty knife construction, should first a small amount of sealing material be criticized and scrape in the slot both sides, gradation in seam, and prevents that capsule from entering air by the sealing material pointing.Joint should adopt oblique raft, after the sealing material pointing, should before surface drying, with putty knife, be repaired, and the self-watering stirring obtains the seal sand slurry slurry and starts to calculate, and completes the time of encapsulation process technique in 60 minutes.
Embodiment 2
Assembled architecture member splicing seams gypsum base sealing material adopts following moiety:
Waste gypsum (half water desulfurated plaster) 100, active admixture (S95 slag micropowder) 80, active admixture (silicon ash) 10, water reducer (naphthalene series high-efficiency water-reducing agent) 1.0, exciting agent (calcium hydroxide) 25, exciting agent (calcium chloride) 5.0, adjustable solidification agent (sodium polyphosphate) 0.2, binding agent (redispersable latex powder) 6, air entrapment agent (sodium lauryl sulphate) 0.3, plasticity-retention agent (hydroxyethyl ether cellulose) 2.0, plasticity-retention agent (wilkinite) 10, starch ethers 0.8, thixotroping lubricant 1.0, fleut (talcum powder) 50, aggregate (quartz sand 10-20 order) 30, aggregate (quartz sand 30-60 order) 30, aggregate (glass bead) 30.
The preparation method:
Desulfurated plaster after 40～60 ℃ of lower prebake, under 140～180 ℃, the calcining obtain half water desulfurated plaster, levigate rear mistake 200 mesh sieves are stand-by;
Take various starting material by formula, add successively aggregate (quartz sand in stirrer, glass bead), powder filler (talcum powder), waste gypsum (half water desulfurated plaster), active admixture (slag micropowder, the silicon ash), water reducer (naphthalene series high-efficiency water-reducing agent), exciting agent (calcium hydroxide, calcium chloride), adjustable solidification agent (sodium polyphosphate), binding agent (ethene and vinylchlorid and vinyl laurate terpolymer rubber powder), air entrapment agent (sodium lauryl sulphate), plasticity-retention agent (hydroxyethyl ether cellulose, wilkinite), starch ethers and thixotroping lubricant, stir, packing forms product.
Application art is the same, and the water yield wherein added is 26% of sealing material weight, when self-watering stirs, counts, and constructing operation should complete in 40 minutes.
The sealing material that said components prepares by aforementioned technique, have the characteristics such as early strength is high, fillibility good, anti-pendant slip is good, is suitable for the construction of the larger splicing seams of width.
Embodiment 3
Assembled architecture member splicing seams gypsum base sealing material adopts following moiety:
The preparation method:
1. phosphogypsum is after 40～60 ℃ of lower prebake, and levigate rear mistake 200 mesh sieves are stand-by;
2. take various starting material by formula, add successively aggregate (quartz sand), waste gypsum (phosphogypsum dihydrate), active admixture (slag micropowder, silicon ash), water reducer (melamine water reducing agent), exciting agent (calcium oxide), binding agent (the copolymer latices powder of ethylene/vinyl acetate), air entrapment agent (triterpenoid saponin), plasticity-retention agent (methylhydroxypropylcellulose ether), hydrophober (calcium stearate), treated starch ether and thixotroping lubricant in stirrer, stir, packing forms product.
Application art is the same, and the water yield wherein added is 22% of sealing material weight, when self-watering stirs, counts, and constructing operation should complete in 60 minutes.
The sealing material that said components prepares by aforementioned technique, have the characteristics such as operable time is long, fillibility good, hydrophobic, is suitable for the seal construction of member splicing seams in summer.
Embodiment 4
Assembled architecture member splicing seams gypsum base sealing material adopts following moiety:
The preparation method:
1. desulfurated plaster is after 40～60 ℃ of lower prebake, and under 140～180 ℃, calcining obtains half water desulfurated plaster, levigate rear mistake 200 mesh sieves are stand-by;
2. take various starting material by formula, add successively aggregate (quartz sand, pottery sand), waste gypsum (half water desulfurization gypsum powder), active admixture (high-calcium fly ass, slag micropowder), water reducer (naphthalene series high-efficiency water-reducing agent), exciting agent (water glass, calcium hydroxide), adjustable solidification agent (citric acid), binding agent (polyvinyl alcohol), plasticity-retention agent (methylcellulose gum, wilkinite), hydrophober (silicone powder), treated starch ether in stirrer, stir, packing forms product.
Application art is the same, and the water yield wherein added is 25% of sealing material weight, when self-watering stirs, counts, and constructing operation should complete in 60 minutes.
The sealing material that said components prepares by aforementioned technique, have the characteristics such as early strength is higher, fillibility good, anti-pendant slip is good, heat transfer coefficient is little, is suitable for the seal construction of general member splicing seams.
Embodiment 5
Assembled architecture member splicing seams gypsum base sealing material, be comprised of the raw material of following component and weight part content: waste gypsum 100, active admixture 200, water reducer 10, exciting agent 50, adjustable solidification agent 0.01, binding agent 30, air entrapment agent 10, plasticity-retention agent 30, hydrophober 10, starch ethers 5, thixotroping lubricant 10, powder filler 150, aggregate 300.
The industrial residue phosphogypsum that waste gypsum is power plant or Steel Plant's flue gas desulfurization byproduct desulfurated plaster or phosphoric acid or Phosphate Fertilizer Industry discharge.Active admixture is slag powders, silicon ash, water reducer is beta-methylnaphthalene sulfonate polycondensate, and exciting agent is sodium sulfate, water glass, Starso, and adjustable solidification agent is Sodium hexametaphosphate 99, sodium polyphosphate, binding agent is pva powder, and air entrapment agent is alkyl-phenmethyl Sulfonates compound.Plasticity-retention agent is methylcellulose gum, methyl hydroxyethylcellulose ether.Hydrophober is stearate, and the thixotroping lubricant is sheet silicate minerals material.Powder filler is silica powder, Paris white, grey calcium powder, and aggregate is pottery sand, pearlstone.
Assembled architecture member splicing seams gypsum base sealing material can be applied to joint seal, specifically comprises the following steps:
(1) clog back lining materials in the seam of needs sealing, and control the degree of depth of sealing material pointing;
(2) in proportion water is mixed with the gypsum base sealing material, the water yield is controlled at the 20-30% of gypsum base sealing material weight, stirs 3-5min and obtains uniform seal sand slurry slurry;
(3) employing caulking gun or putty knife in seam, are repaired seal sand slurry slurry pointing before surface drying with putty knife, complete the encapsulation process of butt seam.
Filling removes the floating ash of seam crossing before back lining materials or the rear removal of prewetting is swum.
Back lining materials adopts the porous plastics of semi-rigid, for example foamed polyethylene plastics, styrofoam plastics, also can adopt wood materials, and shape has circle, bar-shaped or square tabular, when filling, circular its diameter of bar-shaped back lining materials should be a bit larger tham joint gap 1～2mm.As more shallow as seam, available flat isolating bar.
Sealing material can be used caulking gun or putty knife pointing, and pointing should be full, and bubble and hole must not be arranged.While adopting the caulking gun pointing, should select the nozzle that bore is suitable according to the width of seam, evenly extrude the sealing material pointing, and be full of gradually whole seam by bottom.While adopting the putty knife construction, should first a small amount of sealing material be criticized and scrape in the slot both sides, gradation in seam, and prevents that capsule from entering air by the sealing material pointing.Joint should adopt oblique raft, after the sealing material pointing, should before surface drying, with putty knife, be repaired, and the self-watering stirring obtains the seal sand slurry slurry and starts to calculate, and completes the time of encapsulation process technique in 40-60 minute.
Embodiment 6
Assembled architecture member splicing seams gypsum base sealing material, be comprised of the raw material of following component and weight part content: waste gypsum 100, active admixture 20, water reducer 0.01, exciting agent 0.1, adjustable solidification agent 10, binding agent 0.5, air entrapment agent 1, plasticity-retention agent 0.01, hydrophober 0.01, starch ethers 0.05, powder filler 30, aggregate 300.The industrial residue phosphogypsum that waste gypsum is power plant or Steel Plant's flue gas desulfurization byproduct desulfurated plaster or phosphoric acid or Phosphate Fertilizer Industry discharge.Active admixture is flyash, water reducer is sulfonated lignin, exciting agent is sodium sulfate, adjustable solidification agent is citric acid, and binding agent is pva powder, the sodium salt compound that air entrapment agent is rosin tree lipid, plasticity-retention agent is wilkinite, hydrophober is the waterproofing agent of organosilicon powder, and powder filler is silica powder, and aggregate is the grating artificial sand.
Assembled architecture member splicing seams gypsum base sealing material can be applied to joint seal, specifically comprises the following steps:
(1) clog back lining materials in the seam of needs sealing, and control the degree of depth of sealing material pointing;
(2) in proportion water is mixed with the gypsum base sealing material, the water yield is controlled at the 20-30% of gypsum base sealing material weight, stirs 3-5min and obtains uniform seal sand slurry slurry;
(3) employing caulking gun or putty knife in seam, are repaired seal sand slurry slurry pointing before surface drying with putty knife, complete the encapsulation process of butt seam.
Filling removes the floating ash of seam crossing before back lining materials or the rear removal of prewetting is swum.
Back lining materials adopts the porous plastics of semi-rigid, for example foamed polyethylene plastics, styrofoam plastics, also can adopt wood materials, and shape has circle, bar-shaped or square tabular, when filling, circular its diameter of bar-shaped back lining materials should be a bit larger tham joint gap 1～2mm.As more shallow as seam, available flat isolating bar.
Sealing material can be used caulking gun or putty knife pointing, and pointing should be full, and bubble and hole must not be arranged.While adopting the caulking gun pointing, should select the nozzle that bore is suitable according to the width of seam, evenly extrude the sealing material pointing, and be full of gradually whole seam by bottom.While adopting the putty knife construction, should first a small amount of sealing material be criticized and scrape in the slot both sides, gradation in seam, and prevents that capsule from entering air by the sealing material pointing.Joint should adopt oblique raft, after the sealing material pointing, should before surface drying, with putty knife, be repaired, and the self-watering stirring obtains the seal sand slurry slurry and starts to calculate, and completes the time of encapsulation process technique in 40-60 minute.
Claims (10)
1. assembled architecture member splicing seams gypsum base sealing material, it is characterized in that, the sealing material is comprised of the raw material of following component and weight part content: waste gypsum 100, active admixture 20-200, water reducer 0.01-10, exciting agent 0.1-50, adjustable solidification agent 0-10, binding agent 0-30, air entrapment agent 0-10, plasticity-retention agent 0.01-30, hydrophober 0.01-10, starch ethers 0-5, thixotroping lubricant 0-10, powder filler 0-150, aggregate 0-300.
2. assembled architecture member splicing seams gypsum base sealing material according to claim 1, it is characterized in that, the raw material of the preferred following component of sealing material and weight part content forms: waste gypsum 100, active admixture 50-150, water reducer 0.1-5, exciting agent 1-20, adjustable solidification agent 0-5, binding agent 1-10, air entrapment agent 0.05-3, plasticity-retention agent 0.1-15, hydrophober 0.1-5, starch ethers 0.05-5, thixotroping lubricant 0-10, powder filler 30-80, aggregate 30-200.
3. assembled architecture member splicing seams gypsum base sealing material according to claim 1 and 2, is characterized in that, the industrial residue phosphogypsum that described waste gypsum is power plant or Steel Plant's flue gas desulfurization byproduct desulfurated plaster or phosphoric acid or Phosphate Fertilizer Industry discharge.
4. assembled architecture member splicing seams gypsum base sealing material according to claim 1 and 2, is characterized in that,
Described active admixture is selected from one or more in flyash, slag powders, silicon ash or colliery powder;
Described water reducer is selected from one or more in sulfonated lignin, beta-methylnaphthalene sulfonate polycondensate, melamino-formaldehyde polycondensate or polycarboxylate dehydragent;
Described exciting agent is selected from one or more in sodium sulfate, water glass, Starso, sodium aluminate, calcium chloride, calcium oxide, calcium hydroxide or cement;
Described adjustable solidification agent is selected from one or more in citric acid and salt, tartrate and salt thereof, sodium tetraborate, Sodium hexametaphosphate 99, sodium polyphosphate;
Described binding agent is pva powder or redispersable latex powder;
Described air entrapment agent is selected from one or more in the sodium salt compound, soap compounds, sulfonation hydrocarbon polymer, alkyl one phenmethyl Sulfonates compound, triterpenoid saponin tensio-active agent of rosin tree lipid;
Described plasticity-retention agent is selected from one or more in wilkinite, diatomite, methylcellulose gum, methyl hydroxyethylcellulose ether, methylhydroxypropylcellulose ether, hydroxyethyl ether cellulose, carboxymethyl cellulose or lignocellulose;
Described hydrophober is one or both in waterproofing agent of organosilicon powder, stearate;
Described starch ethers is common starch ether or treated starch ether;
Described thixotroping lubricant is sheet silicate minerals material;
Described powder filler is one or more in silica powder, Paris white, grey calcium powder, potter's clay, talcum powder or mica powder;
Described aggregate is selected from grating artificial sand or natural sand, pottery sand, pearlstone, expanded vermiculite, glass bead, polystyrene foam particles, one or more in zeolite, float stone, volcanic cinder or tufa.
5. assembled architecture member splicing seams gypsum base sealing material according to claim 4, is characterized in that, described flyash is high-calcium fly ass.
6. assembled architecture member splicing seams gypsum base sealing material according to claim 4, it is characterized in that, described redispersable latex powder is selected from the multipolymer of ethylene/vinyl acetate, ethene and vinylchlorid and vinyl laurate terpolymer rubber powder, vinyl acetate and ethene and higher fatty acid vinyl acetate terpolymer rubber powder, vinyl acetate and higher fatty acid vinyl acetate copolymerization rubber powder, acrylate and styrene copolymerized rubber powder, vinyl acetate and acrylate and higher fatty acid vinyl acetate terpolymer rubber powder, one or more in vinyl acetate homopolymerization rubber powder or vinylbenzene and butadiene copolymer rubber powder.
7. according to the application of the described assembled architecture member of any one splicing seams gypsum base sealing material in claim 1-6, it is characterized in that, this kind of sealing material is applied to joint seal, specifically comprises the following steps:
(1) clog back lining materials in the seam of needs sealing;
(2) in proportion water is mixed with the gypsum base sealing material, the water yield is controlled at the 20-30% of gypsum base sealing material weight, stirs 3-5min and obtains uniform seal sand slurry slurry;
(3) employing caulking gun or putty knife in seam, are repaired seal sand slurry slurry pointing before surface drying with putty knife, complete the encapsulation process of butt seam.
8. the application of assembled architecture member splicing seams gypsum base sealing material according to claim 7, is characterized in that, filling removes the floating ash of seam crossing before back lining materials or the rear removal of prewetting is swum.
9. the application of assembled architecture member splicing seams gypsum base sealing material according to claim 7, is characterized in that, described back lining materials adopts porous plastics, wood materials or the flat isolating bar of semi-rigid.
10. the application of assembled architecture member splicing seams gypsum base sealing material according to claim 7, is characterized in that, encapsulation process completes in 40-60min.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310484993.XA CN103496936B (en) | 2013-10-16 | 2013-10-16 | Assembled architecture component splicing seams gypsum base sealing material and application thereof |
| HK14103110.3A HK1190132A1 (en) | 2013-10-16 | 2014-04-01 | Prefabricated gypsum-based building components seam sealing materials and application |
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| CN201310484993.XA CN103496936B (en) | 2013-10-16 | 2013-10-16 | Assembled architecture component splicing seams gypsum base sealing material and application thereof |
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| CN103496936B CN103496936B (en) | 2015-09-09 |
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| CN103979893A (en) * | 2014-05-20 | 2014-08-13 | 同济大学 | Flame-retardant thermal insulation mortar doped with cob cores and preparation method thereof |
| CN104098317A (en) * | 2014-07-02 | 2014-10-15 | 上海快刻石膏技术有限公司 | Plaster dry blend and use method thereof |
| CN105016693A (en) * | 2015-07-08 | 2015-11-04 | 济南大学 | Caulking anti-crack mortar |
| CN105924112A (en) * | 2015-12-31 | 2016-09-07 | 洛阳神佳窑业有限公司 | Improved building material |
| CN106854391A (en) * | 2017-01-17 | 2017-06-16 | 云南昆钢建设集团有限公司 | A kind of ardealite base inner wall putty powder and preparation method thereof |
| CN106966676A (en) * | 2017-03-23 | 2017-07-21 | 焦英华 | Environmentally friendly water-fast filleting gypsum and preparation method thereof |
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| WO2019210729A1 (en) * | 2018-05-04 | 2019-11-07 | 北新集团建材股份有限公司 | Caulking gypsum powder and preparation method therefor, and harmless treatment method for phosphogypsum |
| CN111718171A (en) * | 2020-05-25 | 2020-09-29 | 贵州省昊越新型材料科技有限公司 | Gypsum ground expansion backfill treasure |
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| CN103979893B (en) * | 2014-05-20 | 2015-12-30 | 同济大学 | A kind of flame retardant type thermal insulation mortar being mixed with corncob cellulose and preparation method thereof |
| CN103979893A (en) * | 2014-05-20 | 2014-08-13 | 同济大学 | Flame-retardant thermal insulation mortar doped with cob cores and preparation method thereof |
| CN104098317A (en) * | 2014-07-02 | 2014-10-15 | 上海快刻石膏技术有限公司 | Plaster dry blend and use method thereof |
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| CN105924112A (en) * | 2015-12-31 | 2016-09-07 | 洛阳神佳窑业有限公司 | Improved building material |
| CN106854391A (en) * | 2017-01-17 | 2017-06-16 | 云南昆钢建设集团有限公司 | A kind of ardealite base inner wall putty powder and preparation method thereof |
| CN106966676A (en) * | 2017-03-23 | 2017-07-21 | 焦英华 | Environmentally friendly water-fast filleting gypsum and preparation method thereof |
| CN107337953B (en) * | 2017-08-17 | 2018-12-18 | 河北晨阳工贸集团有限公司 | A kind of preparation method of high-intensity wall putty |
| CN107337953A (en) * | 2017-08-17 | 2017-11-10 | 含山县金石建筑材料有限公司 | A kind of preparation method of high-intensity wall putty |
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| WO2019210729A1 (en) * | 2018-05-04 | 2019-11-07 | 北新集团建材股份有限公司 | Caulking gypsum powder and preparation method therefor, and harmless treatment method for phosphogypsum |
| CN108585700A (en) * | 2018-07-20 | 2018-09-28 | 四川省劲腾环保建材有限公司 | A kind of mortar joint and preparation method thereof |
| CN108585700B (en) * | 2018-07-20 | 2020-09-29 | 四川省劲腾环保建材有限公司 | Joint mortar and preparation method thereof |
| CN111718171A (en) * | 2020-05-25 | 2020-09-29 | 贵州省昊越新型材料科技有限公司 | Gypsum ground expansion backfill treasure |
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| CN114856136A (en) * | 2022-05-25 | 2022-08-05 | 南通大学 | Graphene-based MS sealant construction process and MS sealant |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103496936B (en) | 2015-09-09 |
| HK1190132A1 (en) | 2014-06-27 |
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