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Manufactured Foundation Drainage System Installation.
Material is generally supplied in rolls that is simply applied to the waterproofed walls by using double-sided masking tape, sealant, or other adhesives recommended by the waterproofing membrane...
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WATERSTOPS - WATERPROOFING.
Whenever a construction joint occurs in a below-grade concrete structure, a waterstop should be installed in the joint to prevent the transmission of water through the joint.Construction joints, also...
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WATERSTOP INSTALLATION - WATERPROOFING.
PVC/Neoprene Rubber/Thermoplastic RubberWaterstops of this type are placed in the concrete formwork and tied or secured to firmly position the material during concrete placement. It is imperative that...
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HYDROPHILIC/BENTONITE/ASPHALT RUBBER - WATERPROOFING.
These systems are all installed after the first concrete placement has occurred, with the materials attached directly to the first half by a variety of methods. The waterstop is supplied in rolls in...
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PREVENT CAPILLARY ACTION - CONSTRUCTION DETAILS.
Construction details must be included to prevent natural capillary action of soils beneath foundations or below-grade floors. Capillary action is upward movement of water and vapor through voids in...
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WATERPROOFING: POSITIVE AND NEGATIVE SYSTEMS.
In new and remedial installations, there are both negative side and positive side below-grade systems. Positive-side waterproofing applies to sides with direct exposure to water or a hydrostatic head...
View ArticleCEMENTITIOUS WATERPROOFING SYSTEMS.
Cementitious waterproofing systems contain a base of Portland cement, with or without sand, and an active waterproofing agent. There are four types of cementitious systems: metallic, capillary system,...
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Metallic Waterproofing Systems.
Metallic materials contain a mixture of sand and cement with finely graded iron aggregate or filings. When mixed with water to form a slurry for application, the water acts as an agent permitting the...
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Capillary/crystalline Waterproofing Systems.
Capillary/crystalline systems are mixtures of cement and sand in combination with proprietary chemical derivatives in dry or liquid form. The systems are applied in trowel, brush, or spray...
View ArticleChemical Additive Waterproofing Systems
Chemical cementitious systems are a mixture of sand, cement, and proprietary chemicals (inorganic or organic), which when applied to masonry or concrete substrates provide a watertight substrate by...
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Acrylic Modified Waterproofing Systems
Acrylic modified cementitious systems add acrylic emulsions to a basic cement-and-sand mixture. These acrylics add waterproofing characteristics and properties to in-place materials. Acrylic systems...
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CEMENTITIOUS WATERPROOFING SYSTEM APPLICATION
Before applying cementitious systems, substrates must be free of dirt, laitance, form release agents, and other foreign materials. Manufacturers typically require concrete surfaces to be acid-etched,...
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FLUID-APPLIED SYSTEMS - WATERPROOFING
Fluid-applied waterproof materials are solvent-based mixtures containing a base of urethanes, rubbers, plastics, vinyls, polymeric asphalts, or combinations thereof. Fluid membranes are applied as a...
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FLUID SYSTEM APPLICATION - WATERPROOFING
Substrate preparation is critical for proper installation of fluid-applied systems. See Fig.2.51 for typical fluid system application detail. Horizontal concrete surfaces should have a light broom...
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SHEET MEMBRANE WATERPROOFING SYSTEMS
Thermoplastics, vulcanized rubbers, and rubberized asphalts used in waterproofing applications are also used in single-ply roofing applications. Although all systems are similar as a generic grouping...
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SHEET WATERPROOFING SYSTEM APPLICATION
Unlike liquid-applied systems, broom-finished concrete is not acceptable, as coarse finishes will puncture sheet membranes during application. Concrete must be smoothly finished with no voids,...
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HOT-APPLIED SHEET SYSTEMS - WATERPROOFING
Hot-applied systems are effectively below-grade roofing systems. They use either coal tar pitch or asphalts, with 30-lb roofing felts applied in three to five plies. Waterproofing technology has...
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CLAY SYSTEMS - WATERPROOFING AND CONSTRUCTION
Natural clay systems, commonly referred to as bentonite, are composed primarily of montmorillonite clay. This natural material is used commercially in a wide range of products including toothpaste....
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CLAY SYSTEM APPLICATION - WATERPROOFING AND CONSTRUCTION
Natural clay waterproofing materials require the least preparatory work of all below-grade systems. Concrete substrates are not required to be cured except for rubberized asphalt combination systems....
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VAPOR BARRIERS - USE IN CONSTRUCTION WORK
Vapor barriers are not suitable for waterproofing applications. As their name implies, they prevent transmission of water vapor through a substrate in contact with the soil. Typically used at...
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