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Concrete is the single most widely used material in the world. From ancient Rome, over 2000 years ago to today, this material has been used with examples like the Colosseum and the Pantheon still standing in present day Rome. It’s combination of strength, durability and versatility makes it a unique material with many uses, from skyscrapers to counter tops and many uses in between. BCG supplies high quality bagged concrete as well as many products for repairing or placing concrete for our restoration contractor customers. Although concrete is considered a commodity by many, engineers have strict criteria relating to the performance of the concrete or mortars they specify. All of our concretes or mortars are specified and have the performance capabilities that professionals not only deserve but require. Whatever your job requires; repair mortars, concrete anchors, bonding agents, curing and sealing compounds or admixtures, we have brand name products to get the job done right the first time.
Patching walls or ceilings is one of the most common restoration jobs requested. CDS distributes a wide array of product choices from large, well respected construction chemical companies that know the challenges of this problem and also have the solutions worked out with the contractor in mind. We understand the contractor’s needs for quality materials with minimal labour which allows you to do it right the first time and eliminate call backs. There are many similarities as well as differences from one product to the next so check with our technical team to confirm which product will be your best choice for any particular job.
Patching or resurfacing floors due to spalling or cracking is an everyday occurrence and CDS is well placed to help you get the job done with minimum downtime. If you need a product that you can drive over in less than an hour or full depth repairs we have you covered. Don’t forget to check our waterproofing section for ideas as to how to protect your floor from further deterioration once it has been repaired.
Chemical anchoring allows you to secure bolts, rebar, hooks, railings or other items directly into the concrete without undue stress on the concrete itself. This not only secures it, it also protects the concrete from cracking that can occur with mechanical anchors and the stress they place on the concrete, particularly near an edge or corner. Winter or summer, we have the proper chemical anchors to satisfy your engineer as well as your client.
Admixtures can help you achieve a wide variety of integral performance enhancements with newly poured concrete. From super plasticizers that help the workability without increasing the water:cement ratio to integral waterproofing or cold temperature accelerators we have the additives you need to get the job done.
Cementitious or epoxy grouts are common materials for a wide variety of uses generally relating to filling voids or reinforcing existing structures. Unlike concrete, grout is a non-shrink material placed or pumped into a void. Underpinning foundations, setting machinery, strengthening structural columns are among the many uses that can be accomplished with the proper selection of grout. Depending on your criteria relating to time, strength, vibration and other factors we can assist you to choose the correct product for your project.
Hardeners are used for freshly placed concrete to enhance the surface hardness of a floor to ensure the floor can withstand the type of traffic anticipated on that particular floor. Typically used during the finishing stage of freshly placed concrete, they will allow the floor to accommodate much higher abrasion demands mitigating surface deterioration. Dustproofers are chemical hardeners that are used after the floor has been poured to increase the abrasion resistance by hardening the top surface of the concrete, which eliminates or reduces dusting. Often sealers are used for this purpose as they will encapsulate the dust to keep it down but they will wear and don’t actually solve the problem as they must be reapplied once worn. Chemical hardeners resolve the cause of the dusting at the source, not the symptom, and are considered a permanent solution to the problem.
Stamped and coloured concrete driveways. Concrete counter tops. Acid stained concrete floors in restaurants or retail stores. These are examples of what you can do with concrete today. It’s no longer the ugly grey material you’re accustomed to. Let your imagination be your boundary, concrete’s versatility allows many applications that are not only functional but can be aesthetically pleasing as well.
Placing new cementitious material over existing, cured material can be a problem without the proper bonding agent. Even a properly prepared surface generally requires some sort of adhesive to ensure a proper bond and avoid delamination. Traditional bonding agents vary from epoxies to latex but there are also many new technologies that have been developed to further enhance the bond as well as being easier to use. A very important and often misunderstood category, which when properly selected and properly used will certainly improve the quality and durability of concrete patches or overlays.
Most jobs utilising concrete are not complete once the concrete is placed and finished. Often overlooked, curing is a vital stage of the project. Concrete continues to gain strength over the first 28 days, with most of the strength (approximately 90%) occurring during that time. Without proper curing, which can be achieved by keeping the concrete moist for the first 3-5 days or with a chemical compound that keeps the mix water in the matrix of the concrete to allow it to properly hydrate, your ultimate performance of the concrete will suffer drastically. Not to be confused with curing compounds, although they often are, sealers are applied after the concrete has cured. Sealers are designed to protect the concrete from a variety of harmful chemicals depending on the type of sealer chosen. Be careful to consider the environmental exposure of the slab as well as the ultimate look desired to determine the proper sealer. Our technical department can assist you with your choice.
Parking garages, ramps, warehouse floors, entrances to commercial buildings and airport runways are all examples of areas that typically require a rapid repair. When your client needs the job done right but also done quickly you need the right materials. Winter is another challenge whereby quickset mortars are an invaluable weapon in your arsenal. Repairs can be accomplished in the most inclement weather, once again, if you have the right materials. Contact our technical department to discuss your options.
For a professional job you need professional materials as well as the proper tools or accessories that go with the repair material. Don’t arrive at the job site without all the items necessary to do the job, we can help.
Masonry can refer to either the building of a structure from masonry units (brick, concrete block, natural stone among other materials) or the masonry units themselves. We do not distribute the units but we do sell a variety of mortars or grouts for use with masonry units. Different types of mortars are suitable for various masonry units and it is important that the correct mortar is chosen for end-use requirements. These mortars differ in their compressive strengths, flexibility and bonding properties and are chosen on the basis of specifications, site conditions and any special job requirements.
Typically a Type N mortar is used above grade in an exterior or interior wall with non-load bearing purposes. It is generally used for clay brick or soft stone walls. Often you will see the term 1-1-6 in relation to Type N mortars, which refers to the mix design consisting of 1 part Portland cement, 1 part lime and 6 parts sand. It has a relatively low compressive strength that allows the mortar to crack under stress rather than the masonry unit itself cracking as it is much easier to repair the mortar than the masonry units.
Type S mortars are for use below grade with typical examples being masonry foundation walls, retaining walls, sewers and manholes and brick pavers. Type S is much stronger than Type N with compressive strengths generally ranging from 12 to 21 MPa (1800 - 3000 psi). The mix design for Type S is 2-1-9, 2 parts Portland cement, 1 part lime and 9 parts sand.
Masonry grouts or core fill grouts are used to reinforce hollow concrete masonry units (CMU’s), commonly referred to as concrete block walls. The grout is poured into the hollow cavities of the block wall during construction. It is a fluid, cementitious, non-shrink material designed to reinforce CMU’s to increase the strength of the wall as well as bonding the adjacent CMU’s to each other and any steel reinforcement that may be used within the wall.
There are also specialty mortars that are used occasionally, Type O, M and rarely Type K. The Type O features low compressive strength at around 2.4 MPa (350 psi), used typically for interior non-load bearing walls, similar in use to Type N. Type O however is primarily used in repointing applications due to it’s nice consistency and easy application for that type of work. Type M is generally used below-grade for heavy applications with natural stone as the compressive strength is similar to the stone at around 17 MPa (2500 psi). The rarely used Type K is designed for use with historical restoration projects and has an extremely low compressive strength as was typical when ancient or historical buildings were built.
Construction sealants are designed to keep air, vapour/gas or liquids from passing through joints or cracks in the building envelope of any structure. Sealants or caulking are synonymous but not to be confused with sealers. Sealants maintain the integrity of the building envelope and prevent damage to the rest of the structure. They are relatively inexpensive relative to the importance of their function in maintaining that integrity so choice of the correct sealant and proper installation are important considerations. There are many generic categories of sealants and all have distinct purposes or areas of utilisation that must be understood prior to sealant selection.
Silicone based sealants can be used for many diverse construction applications and are considered to be high performance sealants. Those applications include not only sealing the building envelope but will also include bonding or adhesive applications as well as structural glazing. Depending on the type of silicone chosen, suitable substrates will include glass, metal, concrete, masonry, some rubbers and plastics, stone, ceramics and many more. Silicones can withstand the widest temperature range compared to any other conventional sealant and will maintain a great degree of movement capability throughout its lifespan regardless of the service temperatures involved.
WPolyurethanes, commonly referred to as Urethanes are also considered to be high performing sealants. They can perform in many of the critical areas where silicones are used and have some advantages as well as some disadvantages over them so once again it becomes critical to understand the service demands of the joint prior to choosing this or any sealant type. Urethanes are possibly the most versatile of the sealants available currently when price, performance, colour selection, abrasion resistance and longevity are all taken into account.
This is a relatively new category of sealants, commonly referred to as “hybrids” but more accurately they are MS (modified-silane) Polymers or SMP’s (silyl-terminated polymers). They are solvent and isocyanate free with extremely low or at times no VOC’s. Many can be used as adhesives or sealants or as both at the same time as they have a very high “green strength” compared to most adhesives. They are not a blend of silicones and urethanes as they are often portrayed, rather they possess the best attributes of both and are quickly becoming more commonplace as their attributes become better known.
Used primarily for window perimeters, siding and eavestroughs. They are extremely fast skinning and more moisture tolerant than most sealants. Most thermoplastics are available in a vast selection of colours to match today’s expansive window and siding market offerings.
There are other types of sealants without the same high performance aspects that are generally used in areas that are less demanding or critical. These sealants include butyl and acrylics. Also available are specialty sealants such as polysulphides, acoustical sealants, high temperature or refractory sealants and others for certain niche applications.
Application tools, such as caulking guns (cartridge, sausage, bulk, pneumatic, cordless electric), joint tooling spatulas, specialty nozzles, cleaning agents, joint backing materials/applicators, follow plates, caulking warmers etc. are all available through BCG.
Adhesives play a critical part in construction or restoration of existing buildings. They come in many different types, with the correct choice sometimes being difficult to make. The variables include substrate composition, strength, cure time, temperature during and after application, compatibility, price and many other considerations. Our technical team can help you with your project to find the most suitable adhesive after taking all of the variables into consideration. If you’re not sure which one is best for your project, you’re at the right place to find out.
Pouring new concrete or any cementitious material onto an existing cured concrete surface creates a cold joint. It may appear to be bonded but the new concrete is essentially just sitting on the old surface and with movement or any other stresses it can often delaminate if a proper bonding agent is not utilised prior to the new pour. Concrete bonding can be accomplished with a few different types of adhesives including latex, epoxy and other types. The correct choice is dependent on many factors that include speed, type of overlay, open time, anticipated loads among other considerations.
Epoxies are multi-component resinous materials that cure once mixed with a catalyst or hardener in the appropriate ratio. Epoxies are considered structural adhesives and are used in many construction applications including concrete bonding, carbon fibre reinforcement, chemical anchoring and other non-bonding applications like high abrasion coatings or chemical resistant coatings. Epoxies are also excellent electrical insulators and are utilised in ESD (electrostatic discharge) floors which transfer the electrostatic charge from a person to the flooring. See our coatings section for more information on this and other specialised coatings.
General purpose construction adhesives have various chemistries that include polyurethane, acrylic resin, hexane, styrene-butadiene rubber (SBR) among others. These adhesives can be used for adhering many common building elements including wood, drywall, moldings, styrofoam, metal, tile etc.
Roofing could be considered the first line of waterproofing with a vast array of types and systems available. We stock a variety of specialty roofing materials for our roofing contractors needs including hot or cold patching, underlayments, flashing, reinforcement fabrics and primers.
Ice dams are a significant contributor to residential sloped roofs leaking and self adhered underlayments have been the best solution to that problem for many years. As this has become better understood this material is no longer a “specialty” item and is almost considered a necessity for a properly functioning sloped, shingled roof. Fully adhered underlayments are one of our most popular products in our roofing division.
Unlike sloped roofs, a low slope or flat roof cannot depend on gravity to shed the water toward a gutter or drain. This requires the roofing material to be a waterproof, monolithic membrane that will keep the water out of the structure without the expectation it will drain away easily. “Flat” roofs will generally have a slight slope (less than 3-in-12) to help steer water in the direction of drains, surrounded by a parapet wall. Built Up Roofs (BUR), modified bitumen and single layer membrane roofs are the most common systems employed for these roofs.
Hot or cold fluid applied materials offer a seamless waterproof membrane for use in low slope roofing systems primarily. These products can be used to completely roof a building or as a repair material for an existing roof system.
Reflective roof coatings not only reduce energy costs but will increase the lifespan of the roof as well. Thermal shock is reduced, which puts less stress on the roof and consequently mitigates the number and frequency of leaks. Most types of roofs are suitable surfaces for reflective coatings with the main exception being ballasted gravel roofs without special surface preparation. On top of all the other benefits, aesthetic improvement is the most obvious and can certainly be another factor in making a decision.
Roofing systems often require ancillary items, primers, rollers, squeegees, reinforcement materials as well as many other specialty tools and accessories. Confirm with CDS Technical that you have all the materials you need before the job commences as some of these items are often overlooked.
Air Barriers are integral components within the building envelope. The building envelope is defined as the system that separates the conditioned (heated or cooled) space inside the building from the unconditioned area outside of the building. This physical separator should not only resist air movement but also resist water, noise, heat and light with the noise and light generally considered the secondary reasons for these systems. The word “system” has been used purposefully as none of the materials that are used as an Air Barrier are stand alone products. Building Science has taught us that we need to view our buildings as a whole and stop isolating the components or systems from each other. For an air barrier to be effective it must be thought of as a component in a larger system that is tied in to all of the other systems or components of the building as well.
Water vapour permeance or “perm rating” is a measurement indicating the amount of vapour that will escape or diffuse through a membrane. There are three classes of air barriers, Class I (impermeable) - perm rating of less than 0.1, Class II (semi-impermeable) - perm rating between 0.1 and 1 and Class III (permeable) - perm rating between 1 and 10.
As this segment of the market is becoming better understood we have increased our inventory to satisfy this greater demand. Our warehouses stock the most popular products utilised in these systems and are readily available for pick up or delivery.
Sheet applied or more commonly known as “peel and stick” membranes are typically used for smooth substrates without a lot of penetrations or detail work. Permeable sheet membranes are considered Class III with a perm rating between 1 and 10.
Sheet applied or more commonly known as “peel and stick” membranes are typically used for smooth substrates without a lot of penetrations or detail work. Impermeable sheet membranes are considered Class I with a perm rating less than 0.1.
Fluid applied air barriers are ideal for irregular substrates or applications with a large number of penetrations or detail work. They are also used to tie in penetrations in conjunction with sheet applied air barriers. Permeable fluid applied membranes are considered Class III with a perm rating between 1 and 10.
Fluid applied air barriers are ideal for irregular substrates or applications with a large number of penetrations or detail work. They are also used to tie in penetrations in conjunction with sheet applied air vapour barriers. Impermeable fluid applied membranes are considered Class I with a perm rating less than 0.1.
As mentioned previously, air barriers are always part of a system approach to any building envelope. The systems employ a variety of primers, termination mastics, protection and application tools among other ancillary items to properly apply these systems or products. The right tool or accessory can not only make the job go faster it will also likely ensure the performance of the system will be up to the specification parameters.