the problem with reinforced concrete,rust can expand the rebar up to four times its size, enlarging cracks and forcing the concrete to fracture apart in a process called spalling, more widely known as “concrete cancer”..siloxa-tek 8505 concrete sealer // ghostshield® concrete,yes, the concrete needs to be as dry as possible before sealing. we recommend the moisture content of the concrete be less than 4%wt. it is recommended to wait at least 24-48 hours after rain and pressure washing before sealing. what is the difference between siloxa-tek 8505 ready to use and siloxa-tek 8505 ultra concentrate?.
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long lasting concrete patch tips. use cement and hydrated lime. cement paint is critical. pin patches with steel. cure the concrete. click here to get tim's free & funny newsletter! permanent concrete repairs are possible, well, nearly permanent. it's possible to expect a 20 - 30 year life expectancy from a properly executed repair.
its composition (primarily portland cement, sand, and polymer modifiers) is such that the shrinkage resulting from the drying process is reduced. this quality makes it ideal for thin repairs. when resurfacing any concrete to a depth greater than 1/2 inch, make successive applications (allowing for drying in between).
in bituminous or concrete paving. other near-surface or surface exposures of basalt may also contain material suited for crushed-rock aggregate production. as a general rule, outcrops of basalt that are located away from the douglas fault are more likely to contain fresh, hard crystalline bedrock that will meet the testing criteria for construction
deeper bond separation between new and old plaster or between plaster and the substrate, and we use the term scaling to describe calcium carbonate depositing from pool water to plaster surface) since the vast majority of pool plaster does not spall, blister, or flake off, we can see that most plasterers properly apply, cure, trowel, and finish the pools they plaster.
surface failure of concrete is usually caused by one of two reasons: the concrete was placed or allowed to cure during freezing temperatures or the concrete was finished improperly. if concrete freezes during the curing process, the chemical process that develops strength is stopped and you end up with soft, crumbling concrete.
if your concrete needs more than a little help, concrete craft can repair and restore severely damaged concrete, so you don’t even have to consider the possibility of demolition and replacement. we can repair deep cracks, spalling, and uneven surfaces with our exclusive restorekoat by concrete craft tm or one-application stonekoat tm for an extraordinary, real stone finish.
spalling brick is one of the first signs that a chimney is in need of some tender loving attention. the compromised bricks expose the porous interior which gives way to water damage that can eventually destroy your masonry. the following are other damages that can occur due to spalling brick: the water retention can cause the area to mold.
sealing flagstone. all flagstone is subject to water stains, particularly in areas where the water supply is alkaline or contains minerals. stains are unavoidable in outdoor living spaces devoted to cooking and dining. for this reason, all new flagstone paving should be sealed upon completion. a sealer fills the pores in the stone and repels spills.
flagstone is quarried from the ground and therefore will not yield a completely even surface. flagstone patios are set on either concrete or mortar beds. the concrete base is referred to as a 1″ stone, and the mortar base is a 2″ stone. these terms are commonly used but the thickness of
flagstone (flag) is a generic flat stone, usually used for paving slabs or walkways, patios, fences and roofing. it may be used for memorials, headstones, facades and other constructions. the name derives from middle english flagge meaning turf, perhaps from old norse flaga meaning slab or chip.
between freeze-thaw, chemical and biological weathering. moss and ivy growing over headstones will result in both physical and chemical weather-ing. tree or shrub roots will push sections of gravestones apart and can cause them to topple over. this sandstone grave shows many types of weathering. the poor quality stone on the side panels is spalling
sealing the concrete protects the surface from damage caused by road salts and brine used by the highway department during winter driving conditions. even calcium-coated salts, liquid salts, and other ice-melting products have the potential to damage the surface, causing scaling, spalling…
spalling is deterioration of the concrete, causing chunks of the concrete to separate or break off from the concrete structure. spalling can be caused by several reasons: extreme heat, corrosion of steel reinforcement, poor finishing and most commonly the freeze / thaw cycle of water within the concrete.
spalling is when your concrete surface starts to chip and flake. when this happens, you have two options: resurface the entire pool deck or patch the problematic spots. patching makes the most sense when there are only a few small areas of spalling.
“it costs from $3.50 to $5.50 per square foot to replace concrete. however, leaving the old concrete in place and applying a concrete resurfacer with a squeegee reduces the costs substantially.
removing & preventing white powder on concrete basement walls & floors. what it is, how it is caused, & how to get rid of it. in our line of organization, we come across a great number of home owners who express concern about a white, flaky substance that is appearing on their basement walls or floors.
one of the most common concrete repair problems is broken edges /corners of concrete steps. although concrete steps are durable, the corners are vulnerable to chipping and breakage. for most pros, this is an easy fix with a repair material like sakrete's fast setting cement patcher, this product is ideal for applications from ¼” to 2' thickness.
owners don't care about “plain” concrete, but colored concrete is another matter. they complain that their contractor didn't give them the color they ordered, and sometimes they withhold payment. efflorescence is caused when soluble salts and other water dispersible materials come to the surface of concrete and mortars.
another common source of slate roof damage around a chimney is wear and movement caused by flashing leaks and, in freezing climates, frost. photo guide to slate roof defects: mineral inclusions & staining in slates. mineral inclusions: slates with mineral inclusions, the wash-out of minerals in some slates can lead to holes and leaks.
white mountain bubble gum release forms a bond breaking barrier between tools and concrete to promote a clean, easy release of stamping, texturing, and imprinting tools. safe for use on newly colored or uncolored concrete, this release agent is easy to apply, leaves surfaces free of residue, and offers an alternative to powder release agents.
although recent geological observations have quantified the presence of mineralized cement bridges between the two faces of fractures in many naturally fractured tight (low porosity and low
basic stamped designs with one color and pattern run $8 to $12 per square foot, mid-range jobs with borders or contrasting patterns can be $12 to $18 per square foot, and high-end custom projects $18 or more per square foot. for more pricing information, see our stamped concrete cost chart .)
according to several authorities on concrete, it has been identified that water penetration and moisture buildup are two of the most common causes of early material damage. by adding a fresh coat of concrete sealers; you are fundamentally and permanently making your driveway waterproof. and that means your driveway will last more than 30 years.
a. abrasive finish – a flat non-reflective surface finish for marble.; abutment – a solid stone “springer” at the lowest point of an arch or vault.; adhered – veneer secured and supported through adhesion to an approved bonding material applied over an approved backing.; agate – a variegated variety of quartz showing colored bands or other markings (clouded, mosslike, etc.).