|
|
|
|
|
Abrasion resistance: Resistance of a surface from being worn away by friction or rubbing. Accelerator: An admixture which, when added to concrete, increases the rate of hardening or strength development. Admixture: A material other than water, aggregates, sand and Portland cement that is used as ingredients in concrete. Base coat: A very light spray or troweled covering, applied with a "Wet Mix" and a high air pressure, used when matching all the concrete areas into one uniform color and for a different color "Grout Line". Would only be used when applying a "Top Coat". A "Base Coat" is not always required on all jobs. Beuta-Ful: Pronounced with a strong Italian accent. Describes your joy with the work progress. Bond: Is the adhesion of concrete or mortar for reinforcement, or to existing surfaces. Blanket Coat: This coat is simply 2-3 sprayed coats designed to achieve the desired texture and thickness without any pre-laid patterns. This coat is also the basis for a "Custom Pattern" Bleeding: Refers to where a very wet mixture has "Bleed" under the masking tapes. Cement content: This is quantity of cement contained in a unit volume of concrete. Cementitious: Having cement-like, properties. Compressive strength: The maximum compressive stress which concrete is capable of sustaining. Control Join: Related to the pre-made joins already in the concrete. Designed as a "Stress Relief" area, to allow for the concretes natural or forced movement. Curing: The process of hydration of water from concrete, giving it strength and hardness. Custom Pattern: A designed pattern where neither Tapes or Stencils are used, Density: Weight per unit volume. Dispersing agent: An admixture capable of increasing the fluidity of concrete Dry Mix: Product mixed in a very dry mixture. Gives a high and course texture. Durability: The ability of concrete to resist weathering action, chemical attack, and abrasion. Efflorescence: A white crystalline deposit of salts on the concrete surface. Fleck: A "Fleck" is sprayed to "make the concrete look dirty before it gets dirty". After a few months, all jobs will get dirty, so to avoid constant cleaning spray on a "Fleck". Fleck is a large number of very small dots (usually black). Fleck dots can vary in size. Usually sprayed with a medium mixture and very low air pressure. Flexural strength: The property of a solid that indicates its ability to withstand bending. Grout Line: This is the line that remains after a "Top Coat" is sprayed and the patters are removed. The "Grout Line" can be either the "Base Coat" or the raw concrete. High or Low Air Pressure: When used in conjunction with a "Dry or Wet Mix" will change the finish texture. Ie:- A "Low Pressure" and "Dry Mix" will give a very coarse texture finish. Initial set: The degree of stiffening of the cement and water mixture. Laitance: A residue of weak and non-durable material on the surface of concrete. Over Spray: Refers to where the product has been sprayed above any masking tapes. Retarder: An admixture that extends the setting time of concrete. Sand blast: A system of abrading a surface such as concrete by a stream of sand, or other abrasive, ejected from a nozzle at high speed. Scoring: The sawing of fine lines into the concrete surface with a concrete blade. Screed: To strike off concrete to the desired level. Shading Work: You can create some great looking jobs with "Shading" work. Sprayed with a wet mixture and high air pressure, you can spray light / quick bursts of product. Can be used for a Camouflage effect. May take some experimenting and trial to acquire a good shading. Shiners: Where too much product to sprayed in the same area and causes a shiny texture. Caused by either too wet a mixture, or too long in the same spot. Try to avoid all shiners. Spall: A fragment, usually of flaky shape, detached from a concrete surface. Starting Edge: Is the preferred edge of he concrete to commence laying a Tapes or Stencil. Stencil Patterns: A pattern determined by the pre-made stencils. Taped Patterns: A designed pattern achieved by using tapes, usually in Tiled pattern. Top Coat: Sprayed or troweled over a "Base Coat" after the Tapes or Stencil is laid. The "Top Coat" is then sprayed over the area. Usually 2-3 coats are sprayed, to achieve the right texture and thickness. Under Spray: Refers to where the product has been sprayed under any tapes or stencil Wet Mix: Product mixed in a very wet and sloppy mixture. Gives a flat and smooth texture. Wetting agent: A substance capable of lowering the surface tension of liquids, making it more workable. Whitening: May occur shortly after the job is sprayed, and is reasonably common. Caused moisture trapped under the sealer. Workability: The ease with which concrete is mixed and subsequently handled, transported and placed.
|