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Technology Introduction

CoreTech International, Inc. is founded on the principle of providing a multifaceted, all-inclusive thoroughfare to meet the specialized product, training, marketing, business development, and distribution requirements of the cellular concrete industry in the U.S. and international marketplace. CoreTech International, Inc. and its affiliates have developed, and posses, a unique technology that creates a cement-based material known as cellular concrete.  The material uses a scientifically constituted air bubble matrix as its “aggregate”.  This system can incorporate many other waste materials for use in the foamed product including fly ash, magnesium, gypsum and others. The technology provides a complete set of cellular solutions that produce consistent cellular concrete for manufacturing and construction products on site, from a density of 250 kg/m3  up to 2400 kg/m3 (equaling regular concrete).  At a density of 250 kg/m3, the cellular product carries an insulation R-value of up to R3 per inch.  This technology is unique in that it allows an engineer to customize the density, compressive strength, and toughness of the product by adjusting the number and size of the air bubbles inside the cellular product resulting in the desired insulation, fire-proofing and sound attenuation values.  The product can also be designed to have very high resistance to chemical corrosion, seismic activity, and explosive forces.

There are considerable job cost advantages by using cellular concrete as an alternative material in many applications.  CoreTech’s cellular concrete typically is light weight, thus is less expensive to transport.  Cellular concrete is very self-leveling and free flowing, thus involving less labor.  Cold joint-to-joint pours can be achieved.  Longer spans between joints are common.  For geotechnical and road applications, cellular concrete can be poured on relatively unstable soils that would be unacceptable for the use of traditional concrete or asphalt materials.  Atmospheric temperature variables are not as much of a factor as traditional concrete materials.  Cellular concrete has been used in extremely cold and extremely hot locations without incident of failure.  Cellular concrete also provides a true measurable cost savings; the average job cost saving is about 20%.  And, the use of CoreTech cellular concrete can allow the development of entire residential and commercial structures that can be manufactured in a controlled environment, developed for ease of use on-site, and can cut significantly both time and costs involved in real estate development projects.   

The list below summarizes some of the advantages of cellular concrete over traditional concrete materials:

  • Reduced weight, with a wide range of possible densities and strength. Compared with dense weight concrete, reduction in weight from 10% to 87% can be achieved.
  • The cost advantage would be typically around 15 to 40% compared with dense weight concrete.
  • Additional, substantial savings are achieved due to a lower deadweight of the building. Structural components and foundation costs are greatly reduced, in particular on high-rise projects.
  • Quick turn-around in the manufacturing process (24 hours - or less, if accelerators or steam curing methods are employed).
  • Fast construction speed because of pre-cast panel technology - typically half, when compared with conventional construction methods.
  • Fire rated to a minimum of 2 hours for a 75 mm (3") thick panel.
  • No obnoxious or toxic fume emission - no health hazards both in the manufacturing process and if product is subjected to heat (such as in case of fire).
  • Ongoing savings on power / energy costs (for air-conditioning and heating) are very substantial because of its thermal insulation qualities.
  • Cellular concrete can be sawn, sculptured with hand or common power tools and be penetrated by normal building nails and screws.
  • Compressive strength can be varied according to requirements. This is a function of density, moisture, mix proportion, chemical and physical characteristics of components materials and curing method. 10% foam content in the concrete mix renders it stronger than dense weight concrete. Higher percentage of foam in the mix reduces the strength in favor of lighter weight and better insulation characteristics.
  • Low water absorption because of its closed cellular structure.
  • Acoustic properties are such that sound is being absorbed, not reflected, as is the case with dense weight concrete or brick walls.
  • The reduced weight facilitates cartage and handling and reduces transport cost.