TD-DDS Latex waterproof / corrosion mortar I. Introduction Latex Latex is made waterproof mortar waterproof emulsion, special cementitious materials, high-quality aggregate mixed in a special process, which is a cationic chloroprene latex Polymer modified base polymer molecular water corrosion system; imported epoxy resin modified by the introduction of domestic neoprene latex emulsion was added and polyacrylate, synthetic rubber, various emulsifiers, modified latex and other high polymer consisting of latex; added to the base material and the amount of chemical additives and fillers, mastication, mixing, rolling and other processes to join anti-corrosion materials made of polymer waterproof; selection of imported materials and domestic high-quality materials, in accordance with the instructions of the highest level of national industry standards production of quality products, national well-off residential construction recommended products. Latex waterproof / corrosion mortar long life, easy construction, long-term immersion in water for more than 50 years of life. The mortar has excellent adhesion, crack, antifreeze, seepage, corrosion, resistance to chloride ion penetration, abrasion resistance, anti-aging properties, suitable for irrigation, harbor works, roads, bridges, metallurgical, chemical, industrial and civil construction and other impermeable, corrosion protection and repair surface engineering steel and reinforced concrete structures. Second, the use of a building structure reinforced concrete, waterproof plugging two air defense facilities, dams, ports seepage treatment 3, hot tub, landfills, chemical storage, chemical tank and other anti-corrosion chemicals, building 4, road , bridge, tunnel, culvert concrete repair 5, industrial and civil construction roofing, bathrooms, basements leak-proof handle 6, 7 waterproof steel and reinforced concrete, to direct construction in the wet surface of the base, and has a good variety of substrates adhesion. Third, the technical indicators (see Executive Standard: GB / T50212-2002) 1, cationic chloroprene latex emulsion performance indicators: No. Project standard indicators tested viscosity index Results 1 10 ~ 55 (25 ℃, pa s) 15 First grade 2 The total solids content of ≥47 48 First Grade 3 Grade A 4 ≥1.080 1.082 density storage stability of 5 ~ 40 ℃, 3 months, no significant precipitation (when the temperature is too large or the temperature is too low, there will be a slight stratification, should be used with stir) 5 Appearance milky latex uniform Note: The total solids content of milk due to neoprene synthetic methods and purity are not the same, for high temperature polymer and purity higher than 99 or more total solids content higher than 20%, or dispensed product can meet the performance requirements. 2, (cation) Latex waterproof / corrosion mortar performance measurements defined project standards setting time (min)> 45 300 Final setting time (h) <12 10 28d compressive strength (MPa) ≥30 40 28d flexural strength (MPa) ≥3.0 4.5 28d and cement mortar bond strength (MPa) ≥1.2 1.5 28d impermeability grade (MPa) ≥1.6 1.8 28d water absorption (%) ≤4.0 3.0 Alkali resistance: Saturated Ca (OH) 2 solution , 168h without cracking, spalling no cracking, spalling heat resistance: 100 ℃ water, 5h without cracking, spalling no cracking, spalling frost resistance: -15 ℃ ~ + 20 ℃, 25 times without cracking, spalling no cracking, spalling 28 d shrinkage /% without cracking, spalling no cracking, spalling Note: setting time can be adjusted according to user needs; impermeability grade mortar specimen measured. Fourth, the construction Introduction 1. Conditions 1.1 Latex waterproof mortar construction environment temperature appropriate for the 10-35 ℃, when the construction of the ambient temperature is below 5 ℃, heat insulation measures should be taken. Construction should not be in the wind, rain or direct sunlight high temperature environments. 1.2 Latex waterproof mortar curing period should not be less than the cement mortar or concrete base 3d construction. 1.3 When purchased separately Latex emulsion, from the time the construction site with mortar: cement grade should not be less than p.o42.5 cement, aggregate not more than 2.5mm using clean sand or quartz sand, cement: sand ratio of 1: 1-2, one ton mortar Latex dosage of 38-50, in order to achieve the appropriate mortar product performance and get better maneuverability construction, may be added stabilizers, defoamers, ph value adjustment agent additives. 1.4 When using the finished mortar, Latex dosage will be reduced accordingly, the minimum can be as low as 15-20% by weight of the mortar 2, the base surface treatment: 2.1 primary surface should be smooth, rough, clean, no oil, sand, hollowing, cracks and other phenomena. Construction of high-pressure water rinse before application and keep moist state, without water during the construction of the steel construction 2.2 interface, the primary surface should be free of grease, rust, rust grade appropriate for the ST3, and lap welds parts, application of chlorine After Ding latex mortar, during construction. 3, the preparation of mortar: Latex water corrosion should adopt artificial mixing mortar, when using mechanical mixing, use the vertical double mixer. When mixing should churning; mix well, then stir again not adding water, configured mortar should be used within 1h. 4. Use these steps: 4.1 mortar shop wiping Latex Latex preceded brushing cement paste again, according to the cement paste 100-200: 38-50 Latex proportion of mixing, according to the construction of the need to join certain modifiers, while brushing edge paving Latex cement mortar. If the base surface rough, smooth, to meet the conditions of the construction can also be directly applied with a good anti-corrosion mortar waterproof neoprene milk. 4.2 mortar once construction area should not be too large, should block striping or staggered construction, each area should not be greater than 12m2, strip width of not more than 1.5m, fill joints or segmented construction staggered intervals of not less than 24h. Slope of wood or PVC strip joints should be pre-fixed on the base until the mortar can be removed after the plaster strips and left seam fill joints after 24h. Layered construction, the left seam location should be staggered. 4.3 Latex cement mortar paving pressure immediately after wiping, and should be a smooth, should not be repeated wiping pressure. Pierce the bubbles should encounter compacted surface should be dense. 4.4 Construction on the facade or on his back, when the face layer thickness is greater than 10mm, should be layered construction, layered plaster thickness suitable for 5-10mm. When the former to be a layer of dry sticky layer can be under construction. 4.5 Latex waterproof mortar after 12-24h after construction, should be on the surface and then brushing a layer of cement paste. 5. After curing chloroprene latex cement mortar plastering, dry surface to spray or cover that when the sticky plastic films, sacks conservation. Plastic film four weeks should seal, damp curing cycle is best conservation 7d, then nature conservation 21d. 6, when the material used for laying brick, 6.1 blocks surface water should be pre-soaked wood block 2h, water stains to dry paved. 6.2 material combined thickness and width of mortar joints should meet the following types of combined bulk thickness (mm) mortar joint width (mm) acid brick / temperature 4-64-6 natural stone tile thickness ≤30 6-8 6 -88-15 thickness> 6.3 3010-158-15 acid brick paving method should be used for rubbing crowded; paving thickness is greater than or equal to 60mm natural stone seat slurry method may be employed. 6.4 laying in the grass on top of the block material should be brushing paste edge paving, block material bonding layer and mortar joints should be dense and full, and should take measures to prevent the continuous paved bulk movement, facade bulk and height should be clay, mortar hardening time to adapt, and should prevent bulk compressive deformation. 6.5 blocks wood shop, joints should be filled with compacted ash gray seam surface should be smooth and should block the excess mortar material clean. Fifth, packaging storage 1, the product packaging specifications 20kg / drum or 50kg / drum, dry mortar in accordance with 25kg / bag. 2, should be stored indoors in a dry, ventilated, moisture, rain environment, the shelf life of six months. 3. Latex waterproof mortar toxic, tasteless, non-radiation, environmental compliance, according to general cargo was stored transport.