地下沥青油毡卷材防水层施工工艺标准 (303-1996)（Construction standard of waterproof layer for underground asphalt felt(303-1996)）Underground asphalt waterproof layer construction technology standards (303-1996)RangeThis technology is applicable to construction of underground asphalt membrane, asphalt paving materials waterproofing engineering.Construction preparation2.1 materials and requirements:2.1.1 material: petroleum asphalt felt paper, general tire and glass cloth, linen three tire tire.2.1.1.1 asphalt waterproof material specifications, shall comply with the requirements in table 3-2.Asphalt waterproof material specifications of table 3-2Label width (mm) of each volume area (M2) volume weight (kg)915 powder felt more than 28.51000 felt more than 31.5915 powder felt more than 39.51000 felt more than 42.5The physical properties of 2.1.1.2 modified asphalt waterproofing membrane, shall comply with the requirements in table 3-3.Asphalt waterproof coiled material physical properties in table 3-3Performance requirementsNo. 350, No. 500The longitudinal tensile (25 DEG C + 2 DEG C) = 340N = 440NHeat resistance (85 - 2 Deg. C, 2h) don't flow, no bubble concentrationFlexible (18 - 2 Deg. C) around the 20mm diameter rod without cracks around the crack free rod diameter 25mmThe pressure holding time is greater than or equal to 0.10MPa = 30min = 0.15MPa = 30minThe appearance quality of 2.1.1.3 modified asphalt waterproofing membrane, shall comply with the requirements in table 3-4.Table 3-4 appearance quality of asphalt waterproof coiledmaterialThe appearance quality of the project requirementsThe hole, Luo injured is not allowedDew tire, cover unevenness is not allowedWrinkles, wrinkle from core 1000mm, the length should not be more than 100mmThe crack from the core 1000mm, the length should not be more than 10mmA missing edge crack is less than 20mm, the lack of side length is less than 50mm, depth is less than 20mm, each volume should not exceed four.Each volume should not exceed a joint2.1.2 cementing material:2.1.2.1 Building No. 10, No. 30 petroleum asphalt mixing asphalt mastic use.2.1.2.2 petroleum asphalt road No. 60, No. 60 B or its fusion.The quality of 2.1.2.3 asphalt mastic requirements, should comply with the requirements in table 3-5.2.1.3 other materialsPreparation of 2.1.3.1 filler mastic: slate powder, talcum powder, mica powder, asbestos powder.2.1.3.2 gasoline, sand, cement, stone beans (mung bean sand).2.2 main equipmentsGeneral should have an asphalt pot, blower, oil drums, spoon, colander, brush, rubber, oil palm brush, tiger skin, long thermometer (300 to 350 DEG C), car insulation, fire fighting equipment etc..2.3 operating conditions:Table 3-5 quality requirements of asphalt mastic.The name S-60 S-65 S-70 S-75 labeling index S-80 S-85Two pieces of asphalt with asphalt mastic thickness of 2mm adhesive, to not less than the following temperature (c), in 1 to 1 parked on the slope 5h,Asphalt mastic asphalt should not flow, should not slide(c) 606570758085Asphalt mastic asphalt layer coated on 2mm thick, in 18 + 2 degrees, about the diameter (mm) rod, 2S time to balance speed bent into half of the week, asphalt mastic should not crack(mm) 101515202530Hand two pieces glued together the linoleum slowly once torn from the adhesive surface of linoleum and asphalt mastic to any side of the open part, should not exceed the bonding area 1/22.3.1 the underground water level is higher than the construction site of the waterproof layer, should first do lower the underground water level and drainage, the underground water level to the waterproof layer below the bottom elevation of 300mm, and keep to the completion of construction of waterproof layer.2.3.2 paving waterproof layer surface should be dry and smooth, and do not have sand, hollowing and cracking phenomena, yin and yang angle should make circular or obtuse angle.2.3.3 floor or wall embedded tube, deformation joint should be checked at the acceptance of concealed work, to meet the design and construction acceptance specifications.2.3.4 waterproof paste construction, should be in need of outside wall paving waterproof layer, according to the design requirements of the permanent protection of masonry wall, waterproof layer on one side of the vertical wall with 1: 3 cement mortar layer to reach the surface, after drying, the construction side to do waterproof layer.The construction method of 2.3.5 waterproof paste, clear the waterproof layer of joint parts, structure surface leveling layer should be done according to the design requirements, canbe dry before the waterproof layer.2.3.6 box type and compression plate of reinforced concrete floor with lower linoleum waterproof layer, put good cement mortar layer on the cushion, drying can be used only for the construction of waterproof layer.2.3.7 asphalt membrane waterproof layer construction of the temperature should not be lower than 5 DEG C.Operation process3.1 process:3.1.1 planar paving material process:The protection of the wall, masonry protection wall, with line protection layer, wipe the wall leveling leveling cushion layer, maintenance, cleaning, spray cooling, paving base oil, the first layer of additional layer of felt shop wall, laying linoleum, felt the plane of the first layer stratification plane), after the first vertical wipe protection layer3.1.2 vertical paving material process:The demolition of temporary protection wall structure, root surface leveling layer, curing and spraying with cold base oil, then spread Yin Kok Department layer, the first layer of asphalt paving added to second layers (according to shop, the layered design, masonry wall laying) protection (protection layer)3.2 protective wall line: the foundation of the building construction of cushion, according to the construction drawing measuring protection wall line of position.3.3 masonry wall protection: according to the design requirements of masonry wall to protect the foundation floor flat above the elevation of 200mm. In order to make the wall surface waterproofing joint, and built four bricks of temporary protection wall, the four bricks masonry with lime mortar, for exterior wall waterproof removed to meet the lap width and wall floor waterproofing waterproofing membrane.3.4 basic structure of anti water wiping leveling layer for coil paste firmly, to prevent water in the bottom cushion, protective walls, structure matrix, should wipe the leveling layer, the waterproof rolling material in a smooth surface. With rounded corner requirements.Three5 leveling layer maintenance: leveling layer should wipe after watering, the strength to rise after the drying can be waterproof layer.3.6 cold spraying base oil: for paving asphalt mastic waterproof coiled material and combined with, in the shop before the coil should be in the shop, veneer, cold spraying base oil two.Cold base oil proportion and method:The proportion of the weight ratio of 30%: 70% petrol asphalt.Preparation method: asphalt heating to the foam, the dehydration, cooling to 90 DEG C, gasoline will be slowly injected into the asphalt, with the injection with stirring to dissolve asphalt so far.3.7 paving waterproof layer3.7.1 planar paving material: paving material, it is desirable to surface drying, spray cooling with base oil layer two, then according to the specifications and requirements of wire coil lap, according to stratification line laying, paving material should meet the following requirements:Asphalt cement materials, 3.7.1.1 paste the membrane thickness is 1.5 ~ 2.5mm.3.7.1.2 membrane lap length: length should not be less than 100mm, the short side should not be less than 150mm. On the two layer and two adjacent coil joints should be staggered, the upper and lower vertical Paving Membrane shall be.3.7.1.3 in the plane and elevation of the corner roll seam should stay on the plane from the facade is not less than 600mm, see 3-1.The first layer of felt inside corner paving methodThe first layer of felt positive angle paving methodSecond layers of corner paving method3.7.1.4 in all corners should be paving the additional layer. Two additional layer can be a layer of the same material, also roll and a thin layer of high tensile strength. The additional layer should be according to the shape of carefully close paste reinforcement.3.7.1.5 paste should be flat membrane compaction. Roll with grass and each layer of coil must be closely bonded, asphalt cement materials should be extra extrusion joint must use asphalt seal carefully. The last layer of material good paste, should be on the surface evenly a layer thickness of 1 ~ 1.5mm hot asphalt cementing material. At the same time and shoot sand to form a combined layer of waterproof protective layer.3.7.1.6 plane and facade structure construction joints.3.7.2 vertical paving material: before paving should make surface dry, cold spray base oil two, drying paving. Paving facade has two kinds of material, paving the way to the practice requirements are as follows:3.7.2.1 facade waterproof layer anti sticking method: first, the latter with plane shop facade, facade junction should be paved with additional layer. The general construction will root according to the structure of construction joint bottom elevation height to outside the anti sticking membrane layer, joint parts should be set aside to do first coil lap length, the scope of the protection wall application of lime mortar masonry structure wall to do outside the anti sticking membranewaterproof layer, layered joint, waterproof at the wrong Cha figure 3-2 joint. Experience after masonry wall.3.7.2.2 facade waterproof layer and preventing the stick method: before construction of the structure, should be permanently protected in wall masonry and waterproof structure with a cushion. The protection wall waterproofing membrane surface should first apply 1 to 3 cement mortar layer, drying after spraying cold base oil,After the drying of paving asphalt felt. Tiles must be layered, first tile facade, after paving plane, paving facade should first corner shop, shop after surface; waterproof layer should be done after resurfacing, cement mortar or concrete protective layer according to the specification or design requirements, generally in the facade should be in the final layer of asphalt waterproof layer coating cementing material, sticky clean sand, after cooling, with a thickness of 10 to 20mm, 1 to 3 of the protective layer of cement mortar; laying fine stone concrete protective layer thickness of 30 to 50mm in the plane. Outside the anti sticking wall protection method turning membrane laying is shown in figure 3-3.The practice of 3.7.2.3 waterproofing membrane and root canal embedded parts connection.3.7.2.4 adopts the embedded type deformation of rubber or plastic waterstop joint method.The 3.8 protective layer or protective wall:Anti paste waterproof layer surface should be protective layer, plane surface coil do fine stone concrete protective layer thickness is 30 ~ 50mm; elevation 1: 3 with a protective layer of cement mortar, the thickness of 10 to 20mm.quality standard4.1 ensure project:4.1.1 membrane and cement materials must comply with the provisions of the requirements of the design and construction and acceptance specification.The deformation of 4.1.2 waterproof layer and seam, pre buried pipe fittings, detailing, must comply with the design requirements and specification for construction and acceptance of.4.2 basic items:Joint deformation joint deformation of bottom wall a B4.2.1 base solid, surface clean, smooth, yin and yang angle is in a circular arc shape or obtuse, base oil cold uniform coating, no leak painting.4.2.2 paving method and lap, head shall comply with the provisions of code for construction and acceptance of the bonded tightly, joint sealing, no damage, bulging.The protective layer of 4.2.3 waterproofing layer should befirm, with dense bonding, uniform thickness.Product protection5.1 pipeline underground waterproof layer shall be embedded parts damage deformation and debris jam.5.2 waterproof layer paving is completed, to do the protective layer in time, prevent the construction damage of waterproof layer; with waterproof layer paving is completed, should be built according to the design of protective wall.5.3 roll plane waterproof layer construction and after completion, shall not be placed material or waterproof layer on the waterproof layer used for construction and transportation lane.Should pay attention to quality issues6.1 waterproof layer hollowing: waterproof layer hollowing, the causes are water base membrane waterproof layer and high rate of leveling layer is not dry, construction waterproofing layer, the moisture sealed inside, hot gas will have different waterproof layer; paving asphalt felt, pressure too tight, do not paste dense shelter during the operation of the heat, the roll foaming, hollowing. The construction should be paid attention to when the primary drying operation should not shelter are compaction, gas, can prevent the occurrence of hollowing.6.2 leakage: underground waterproofing engineering leakageoccurred mainly in the wall pipe, bolt, deformation joints and coil joint, the reason is that these special parts of the waterproof base treatment is not good, the structure is not dense, the leveling layer head is not tight;Coil additional layer edge is not strict, roll cutting rules; deformation joint water stop twisting pressure is not good, cause structural deformation deformation of the joints Water Leakage; coil joint has the construction joint sheet is broken, lay and stick to lax Water Leakage. The construction should be based on the special parts of different processing methods, adopt regulations, operating carefully according to the shape of cut sheet, stick around flat Yan, firm bonding, after the completion of these parts additional layer paving, carefully check, good inspection.Quality recordsThe technology standard should have the following quality records:7.1 waterproof material product certificate and retest data.7.2 preparation of asphalt binder and paste test data.7.3 hidden engineering inspection materials and quality inspection and evaluation data.。
