T.W. I

Fly ash is one of the naturally-occurring products from the coal combustion process and is a material that is nearly the same as volcanic ash. Use of Fly Ash: The most common use of fly ash is as a partial replacement for portland cement used in producing concrete. Replacement rates normally run between 20% to 30%, but can be higher. Fly ash reacts as a pozzolan with the lime in cement as it hydrates, creating more of the durable binder that holds concrete together. As a result, concrete made with fly ash is stronger and more durable than traditional concrete made exclusively with portland cement. Advantages: 1. It reduces dead load on structures due to light weight (2.6 kg, dimension: 230 mm X 110 mm X 70 mm). 2. Same number of bricks will cover more area than clay bricks 3. High fire Insulation 4. Due to high strength, practically no breakage during transport and use. 5. Due to uniform size of bricks mortar required for joints and plaster reduces almost by 50%. 6. Due to lower water penetration seepage of water through bricks is considerably reduced. 7. Gypsum plaster can be directly applied on these bricks without a backing coat of lime plaster. 8. These bricks do not require soaking in water for 24 hours. Sprinkling of water before use is enough. Disadvantages: 1. Mechanical strength is low, but this can be rectified by adding marble waste or mortar between blocks. 2. Limitation of size. Only modular size can be produced. Large size will have more breakages. For more details please click the following link: www.twil.pk/fly-ash or call us at 03008287755