Phoenix SDS Co., Ltd.

Technical Overview

K Block Lightweight Concrete is produced by adding millions of micro-sized air bubbles into a cement based mixture. The addition of millions of air bubbles is achieved by using a proprietary foam generator to produce highly stable and injecting the foam directly into a concrete mixer containing a sand/ cement/ water slurry.

The amount of cement, sand (if included), water and foam included in the lightweight cellular concrete mix design depends on the required properties (ie. strength, thermal conductivity or durability). Also, depending on the required density and variance, an appropriate mixer is selected.

K Block Lightweight Concrete behaves like ordinary concrete in most aspects, such as curing or strength gain over time but its lightweight nature provides many additional benefits.

Some of the benefits from using K Block Technology include:

	Flexibility:
	once it has been made, it can be pumped or poured. That means you can use it like a topping for roof and floor slabs or for almost any casting application on site or in a factory.

Close cell by K BLOCK

	Low cost:
	in comparison to other methods producing lightweight concrete, K Block Lightweight Concrete is significantly less expensive. And compared to other building materials (red brick, normal weight block), K Block is at least the same price per m2 and in many cases less.

	Excellent Thermal insulation:
	Low weight and closed cell structure enable it to achieve very low thermal conductivity (high insulation value).

	Fire Protection:
	The low thermal conductivity also means enhanced fire protection – K Block walls typically provides at least twice the fire protection as concrete, brick or block walls. Lightweight Concrete will not burn, or give off hazardous fumes.

	Sound Protection:
	When sound waves pass through air this causes them to reduce their intensity (resulting in lower sound volume). The air bubbles in K Block Lightweight Concrete have the same effect. Air bubbles are especially good at blocking low frequency sound (ie. bass sound from music)

	Transportation:
	Freight costs greatly reduced – either by casting the product on site (eliminating the need for freight) or by weight reduction – more pieces are loaded onto a truck , thereby reducing cost per mt.

	Weight reduction:
	Weight reductions of 10% to 90% compared to normal weight concrete are possible.

	Equipment Savings:
	A reduction in crane size is possible because of the light weight.

	Labour:
	Given the lighter weight, less labour is needed. Lightweight block walls are typically built 3-5 times faster than brick walls and lightweight cast-in-place walls are completed 15-20 times faster that brick walls.

	Foundation Costs:
	A lower building weight means significant savings in foundation costs. Such savings are often many times more than the Lightweight Concrete cost.

	Flexibility:
	K Block blocks can be sawn by hand, sculptured and penetrated by nails and screws

	Toppings:
	K Block Lightweight Concrete is extremely easy to screed, and may be place in layers down to a minimum thickness of 40 mm