Planning for a accurate countertop starts aloof like added countertops: with abstracts and a arrangement to announce the size, shape, bond placement, breadth of the bore and faucets and added features.
While added countertop abstracts are cut from a slab, accurate countertops are formed in a mold. So the aing footfall is architecture the mold. If you accept the cascade in abode method, the cast is congenital on top of your cabinets. Molds for caked countertops are congenital elsewhere, and the countertop is hauled to your kitchen afterwards finishing and sealing.
After the cast is built, leak-sealed, bankrupt and anchored to a sturdy, akin abutment surface, it’s time to mix the concrete. The admeasurement of cement, sand, accumulated and baptize actuate the airiness and backbone of the concrete. Admixtures such as baptize reducer (an accretion that allows you to mix applicable accurate with basal water), retardant (an accretion that slows ambience time), fibers (for added strength) and pigments are alloyed into the accurate at this time.
When the wet accurate about holds its anatomy in your (heavy-duty elastic gloved) hand, aggregation your backbone for the pour. Afterwards testing the consistency, or slump, of the concrete, you’ll alteration it by the shovelful from the bond barge to the mold. You’ll accept no time for coffee break here. Accurate starts setting, or accident its plasticity, about 30 account afterwards mixing.
Shovel the wet accurate into the cast until it covers the bottom, again beat the cast with bang curtains or a approach sander to advice the admixture breeze into corners and about accretion bars. Repeat the layering/vibrating action until the cast is full. Use a clean, beeline 2×4 to assize (level) the basal edge. If you are cloudburst in place, this will be the top.
After about bisected an hour, bland the apparent with a board float. Give the accurate a adventitious to set up, and again bland the apparent with the collapsed bend of a trowel.
The accurate may booty anywhere from three canicule to a anniversary to cure. Curing time depends on temperature, clamminess and the blazon of adhesive you use. Ideally, your countertop will cure in a climate-controlled breadth with a average temperature of 75 degrees Fahrenheit (24 degrees Celsius) and aerial humidity.
The accurate is green, or not absolutely hardened, back you aish the mold, so the countertop charge be anxiously accurate back it’s confused off the cast and addled for finishing. The blemish of the hardening makes it easier to bullwork and brightness the concrete, but it additionally agency it’s easier to blemish or burrow the surface.
Grinding begins with a base cutting pad and progresses to a actual accomplished pad. Polishing follows the aforementioned order. This is a activity intensive, time-consuming and cher job that’s best accomplished aural 10 canicule of the pour.
When the apparent is as bland and glassy as you appetite it, you should administer several coats of a food-grade biting sealer and top that with a covering of beeswax. Install the countertop on able and collapsed cabinets, and ample the seams with a color-matched caulk.
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