Lightweight concrete is made of cement, sand and millions of small air bubbles. These air bubbles give lightweight concrete many unique features and benefits and make it ideal for a wide variety of uses and applications. For example:

Buildings Materials:

  • Lightweight Block
  • Cast-in-Place Walls
  • Precast panels or walls
  • Exposed Concrete
  • Floor Toppings
  • Roof insulation
  • Knockdown Kitchens
  • Sandwich Walls
  • Architectural concrete


  • Slope stabilization
  • Sub-base material
  • Bridge approaches
  • Void filling
  • Retaining wall backfills

Benefits Overview

K Block Lightweight Concrete is produced by adding millions of micro-sized air bubbles into a cement/ sand mixture. The amount of cement, sand, water and air bubbles included in the lightweight concrete mix design depends on what properties are desired - ie. strength, low weight, thermal conductivity, sound protection or durability.

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:

Low water absorption: With a closed cell air bubble system water needs some force to penetrated deep into K Block Lightweight Concrete. This means:

1. Normal mortar and plaster can be used with lightweight blocks
2. K Block Lightweight Concrete can be used in wet areas
3. No problems leaving K Block Lightweight Concrete precast or cast-in-plan panels exposed

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 expensive and quicker to build.

Excellent Thermal insulation : Low weight and closed cell structure enable K Block 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, if not more, fire protection than concrete, brick or block walls. Lightweight Concrete will not burn, or give off hazardous fumes.

Sound Protection : As sound waves pass through air the air causes the sound waves to reduce their intensity (resulting in lower sound volume). The air bubbles in K Block Lightweight Concrete cause the same effect the same. Air bubbles are especially good for the reduction of low frequency sound (ie. bass sound from music)

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.

Helps keep Homes Healthy : Since K Block Lightweight Concrete has low water absorption and high pH values, moulds, fungi, and bacteria have a harder time moving through or living on/ in K Block products. Making homes more healthy

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 lightweight 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.

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

K Block Technology Co.,Ltd.

1583 Soi Ladprao 94 Ladprao Rd., Wangthonglang Bangkok 10310
Tel. : +662-559-2318-21, +6686-320-2414
Fax. : +662 559 2322
E-mail :