What's wrong with kalsa?
I googled and got the following:-
"Sleek, sharp, strong Kalsa Calcium Silicate Bricks set a new dimension in home construction. Internationally renowned for their high comprehenssive strength, quality and aesthetic value, controlled by a British Standard 187, calsium bricks have proven their superiority over other kinds of building materials. Yet they are superiority priced to enable home owners the opportunities of experiencing their remarkable advantages"
Added on October 25, 2011, 11:18 pmHei, I am not a brick salesman, but another interesting piece on Kalsa bricks...
Calcium Silicate Bricks [KALSA] are made by compressing a mixture of naturally clean raw materials – lime and sand – under high pressure steam; a process which chemically fuses the raw materials to form calcium silicate – a compound that is well known for its heat insulation properties. The lime and sand used is tested for consistency, fineness and purity. During the manufacturing process, below par bricks are automatically destroyed. The final product is subjected to impact tests to verify its tenacity.
Calcium Silicate Bricks offer a few distinct advantages such as economical, high compressive strength, heat resistance, sound insulation and durability that place them in a class above all other bricks.
1. Beauty – In their natural state, Calcium Silicate Bricks are white, a whiteness that remains even through years of weathering. By pre-mixing with pigments, Calcium Silicate Bricks of almost any colour can also be produced. This together with their perfect geometrical shape, uniformity in size and aesthetic appeal make Calcium Silicate Bricks most suitable as a decorative medium in home construction or as facing bricks.
2. Economical – Their uniform size and shape enable easier and fast bricklaying. Being hard, damage by rough handling on site is only minimal. This give saving in terms of materials, labour, time and cost.
3. High compressive strength – Compacted and steam-cured at high temperatures and pressures makes the bricks have high compressive strength. This, together with good load-bearing capability makes Calcium Silicate Bricks ideal for non-frame construction.
4. Heat Resistance – Calcium Silicate Bricks have exceptional heat insulation characteristics, thus ensuring a cool, crisp interior.
5. Sound insulation – Their good sound insulation properties keeps your working and living environment quiet and peaceful.
6. Durability – Calcium Silicate Bricks harden with age. As they do not contain soluble salts, they do not disintegrate.
err...i think u shud ask some comments from contractors..instead of mr google..