Summary of the invention
Purpose of the present invention aims to provide and a kind ofly can partly substitute waterproof roll, one time blade coating can reach the used thickness requirement, waterborne thick rubber-plastic waterproof mortar of snappiness shock resistance, anti-backfill puncture and preparation method thereof is to overcome weak point of the prior art.
By a kind of waterborne thick rubber-plastic waterproof mortar of this purpose design, its constitutional features is that its prescription comprises that following material is by weight: macromolecule emulsion is that 33-65, tackifying resin are that 2.5-6.5, high strength fortifying fibre are that 0.3-1.5, waste Crumb rubber are that 20-35, filler are 3-22, auxiliary agent 1.7-5.7 and water 2.5-7.5.
Described macromolecule emulsion is polystyrene-acrylic ester emulsion, and its ratio of weight and number is 38-60, perhaps 45-55, and the main effect of polystyrene-acrylic ester emulsion is the film forming matter of waterborne thick rubber-plastic waterproof mortar.
Described tackifying resin is the water-based rosin milk, and ratio of weight and number is 3-6, perhaps 4-5.Water-based rosin milk and polystyrene-acrylic ester emulsion have good consistency, easily be scattered among polystyrene-acrylic ester emulsion, and generation can not flocculate, precipitate; The water-based rosin milk has greatly improved initial bonding strength, has prevented from effectively in the construction that incidental slurry drips to hang and fall.Studies confirm that the water-based rosin milk also has very strong hydrophobicity in coating, impervious waterproof is played effective booster action.
Described high strength fortifying fibre is dimension gram polypropylene fibre, and ratio of weight and number is 0.7-1.0, perhaps 0.8-0.9; Dimension gram polypropylene fibre is a kind of high-strength polypropylene pencil monfil, through surperficial special processing technology, have splendid dispersiveness in water-borne coatings, it mainly acts on is shock resistance, anti tear and the puncture resistance that improves coating, can also improve tensile strength and resistance to fatigue; And studies show that Vltra tears can be realized the purpose of anti-crack and anti-seepage in concrete and mortar.
Described waste Crumb rubber is the rubber grain that the waste vapour vehicle tyre forms through ground finish, and its ratio of weight and number is 25-30, perhaps 27-28; It mainly acts on is superelevation elasticity, heat-insulation and heat-preservation and the noise elimination sound absorption function of giving waterborne thick rubber-plastic waterproof mortar; The more important thing is to make waterborne thick rubber-plastic waterproof mortar have good puncture resistance do not having under the state of protective layer, can effectively resist the destruction of foreign material such as cullet, iron filings, masonry, pottery.
Described filler is order water-ground limestone or order talcum powder or softening agent or order wilkinite; Ratio of weight and number is 8-17, perhaps 12-13; Described order calcium bicarbonate, order talcum powder, softening agent and order wilkinite are mainly as the water impermeability and the constructing operation that improve waterborne thick rubber-plastic waterproof mortar.Wilkinite has thickening power concurrently.
Described auxiliary agent comprises sanitas, water-holding agent, linking agent and/or coupling agent; The ratio of weight and number of sanitas is 0.05-0.25, perhaps 0.1-0.2.
Described water-holding agent is a Vltra tears, and ratio of weight and number is 0.1-0.3, perhaps 0.15-2.The water conservation effect excellence that Vltra tears is is mainly given the waterborne thick rubber-plastic waterproof mortar homogeneity, makes construction become more quick and easy.
The ratio of weight and number of described linking agent is 0.5-0.9%, perhaps 0.7-0.8; Linking agent is a silane coupling agent, and it mainly plays the promotion bonding effect, can improve water-resistant coating and hygrometric state cohesive force, improves tensile strength and tear strength, strengthens the anti-aging and weather resistance of coating; The ratio of weight and number of coupling agent is 0.5-0.8, perhaps 0.6-0.7; Coupling agent is a kind of reactive silane coupling agent that has, and is mainly used in to improve tackifying resin to the avidity between high strength fortifying fibre, waste Crumb rubber and the filler.
A kind of making method of waterborne thick rubber-plastic waterproof mortar, its constitutional features is to comprise the steps:
1) cement mortar mixer is scheduled low gear, install a mixing bowl, adjust stirring rake as far as possible near cylinder bottom.
2) when carrying out above-mentioned steps, 33-65 macromolecule emulsion and 2.5-6.5 tackifying resin are added in a mixing bowl, start stirrer, under whipped state, add linking agent, coupling agent, water-holding agent by above-mentioned parts by weight.
3) when carrying out above-mentioned steps, fully stir 10-30 minute after, add softening agent, fortifying fibre and order wilkinite by above-mentioned parts by weight.
4) when carrying out above-mentioned steps, continue to stir after 10-30 minute, add order calcium bicarbonate, order talcum powder, waste Crumb rubber by above-mentioned parts by weight.
5) when carrying out above-mentioned steps, shut down the slurry that will stir casing wall every 10-15 minute in the whipping process and shovel in the cylinder with perching knife, avoid stirring inhomogeneous.
6) repeat the 5th step 1-3 time after, add the finished product that entry adjustment waterborne thick rubber-plastic waterproof mortar is the cream pasty state by above-mentioned parts by weight.
The present invention compared with prior art has following unusual effect:
Can partly substitute waterproof roll, one time blade coating can reach the used thickness requirement, has the characteristics of snappiness shock resistance, anti-backfill puncture; Both can be used for the water proof anti-seepage that upstream face also can be used for back side, need not add protective layer again.The present invention is the multi-occupancy building mortar with heat insulation and heat absorption, noise reduction noise elimination, and a large amount of waste tyre rubber powders that use to the recycling of environment protection and resource, have also been made positive contribution in the prescription.
Embodiment
Below in conjunction with embodiment the present invention is further described.
First embodiment
This waterborne thick rubber-plastic waterproof mortar and preparation method thereof comprises following material by weight: macromolecule emulsion is that 33-65, tackifying resin are that 2.5-6.5, high strength fortifying fibre are that 0.3-1.5, waste Crumb rubber are that 20-35, filler are 3-22, auxiliary agent 1.7-5.7 and water 2.5-7.5.Described filler is order water-ground limestone or order talcum powder or softening agent or order wilkinite; Auxiliary agent comprises sanitas, water-holding agent, linking agent and/or coupling agent.
Cement mortar mixer due to low gear, is installed a mixing bowl, adjust stirring rake as far as possible near cylinder bottom.Take by weighing macromolecule emulsion 54kg, tackifying resin 4kg adds in a mixing bowl, starts stirrer; Under whipped state, take by weighing linking agent 0.9kg, water-holding agent 0.1kg is invested in the cement mortar mixer; After fully stirring 15 minutes, take by weighing order wilkinite 3kg and be invested in the cement mortar mixer.
Continue to stir after 15 minutes, take by weighing waste Crumb rubber 26kg and order calcium bicarbonate 2kg is invested in the cement mortar mixer, shut down the slurry that will stir casing wall every 15 minutes in the whipping process and shovel in the cylinder, avoid stirring inhomogeneous with perching knife.After repeating to shut down 1-3 time, add entry 6kg and adjust the finished product that waterborne thick rubber-plastic waterproof mortar is the cream pasty state.
Second embodiment
Taking by weighing macromolecule emulsion respectively is 58kg, and the water-based tackifying resin is 4.3kg, and linking agent is 1kg, and water-holding agent is that 0.1kg, order wilkinite are that 3.2kg, waste Crumb rubber are that 27.4kg, order calcium bicarbonate are 3.9kg and water 2.1kg.Other is not stated with first embodiment.
The 3rd embodiment
Taking by weighing macromolecule emulsion respectively is 60kg, and the water-based tackifying resin is 4.5kg, and linking agent is 1.2kg, and water-holding agent is that 0.1kg, order wilkinite are that 3.4kg, waste Crumb rubber are that 24.8kg, order calcium bicarbonate are 4kg and water 2kg.Other is not stated with first embodiment.
The using method of waterborne thick rubber-plastic waterproof mortar and precaution:
1) processing base level:
If concrete surface is more smooth solid, no greasy dirt, no open fire, slightly moistening, temperature be in+5-40 ℃ between, then can directly construct (should not construct in the sleet sky).
If concrete surface is very dry, then need spill little water moistening after again the construction.
If concrete surface is relatively more loose not solid, then must do primary coat earlier and handle, primary coat liquid is: macromolecule emulsion: water :=1: 5.Brushed in the time of to treat that primary coat liquid surface drying does not have washmarking behind the primary coat liquid, constructed again.
2) waterborne thick rubber-plastic waterproof mortar is monocomponent room-temperature cured type, open bung after, directly shovel out with the brick cutter, cover with spatula and smear on body of wall, the control slurry thickness is 2-3mm, smears smooth getting final product.
3) bed of mortar is finished in the 24h of back and must not be drenched with rain, and completely solidified needs 72h, if chance is overcast and rainy, set time can proper extension.Domestic demand is safeguarded during this period of time, in order to avoid coating is impaired.