Lightweight concrete blocks are made from cement-like materials derived from seashells and rice husk ash, and manufactured using specific processes.

Abstract

OCR 09WP 22 / 12 / 2568 Lightweight concrete blocks composed of cement-like materials from seashells and rice husk ash, as described in this invention. It consists of rice husk ash powder, cement powder, and cement-like powder derived from seashells and rice husk ash. Similar to cement made from seashells and rice husk ash, it consists of tricalcium silicate. Dicalcium silicate (Ca3SiO5), dicalcium silicate (Ca2SiO4), tricalcium aluminate (Tricalcium aluminate (Ca3Al2O6), tetracalcium aluminoferite (Ca4Al2Fe2O10) And gypsum powder is manufactured as follows: A cement-like powder is prepared from seashells and... Rice husk ash. Next, combine rice husk ash powder, cement powder, and cement-like powder derived from seashells and rice husk ash. Mix the ingredients together, add water and mix until smooth. Pour into molds and let it harden. Once finished... After a specified time, the material is removed from the mold and cured in water to produce lightweight concrete blocks composed of various materials. Similar to cement made from seashells and rice husk ash.

Claims

OCR 09WP 22 / 12 / 2568 1. Lightweight concrete blocks made from cement-like materials derived from seashells and rice husk ash consist of: Rice husk ash powder 10 - 60 percent by weight. 20-45 percent cement powder by weight. Cement-like powder made from seashell and rice husk ash, 20-45 percent by weight. Where a cement-like powder made from seashells and rice husk ash is composed. Tricalcium silicate (Ca3SiO5) 60-75 percent by weight. Dicalcium silicate (Ca2SiO4) 10-25 percent by weight. Tricalcium aluminate (Ca3Al2O6) 8-10 percent by weight. tetracalcium aluminoferrite (Tetracalcium aluminoferrite: Ca4Al2Fe2O10) 2-4 percent by weight Gypsum powder (2-4 percent by weight) 2. The process of manufacturing lightweight bricks composed of cement-like materials from seashells and rice husk ash. According to Claim 1, the following steps apply: a. Prepare the rice husk ash powder by grinding the rice husk ash into small pieces and then sieving it through a screen. Rice husk ash, with a mesh size of 325, was produced as powder. B. Prepare the cement powder by grinding the cement into small pieces and then sieving it through a fine mesh screen. A 325 mesh size is obtained as cement powder. C. Take 10-60 percent by weight of the rice husk ash obtained from step A, and the resulting cement powder. From point B, 20-45 percent by weight, and cement-like powder material from seashells and rice husk ash. Mix 20-45 percent by weight thoroughly, then add water in the ratio of water used to... With a water-to-binder ratio (W / B) of 0.8 - 1.0, mix thoroughly until homogeneous. D. Pour the mixture from step C into the mold and let it harden for 22-26 minutes. After the specified time, remove the workpiece from the mold and cure it in water for 7-28 days. It is a lightweight brick made from cement-like material derived from seashells and rice husk ash.