This research studies of crushed oyster shell (OSP) as a substitution for cement in producing the interlocking block. Research process are design the mixtures which contain 0 10 20 30 40 and 50%. Control water at optimum moisture content (OMC). Results of the tests the compressive strength at 7 14 28 60 90 days and the moisture absorbed at 28 days showed that increasing the amount of OSP decreased compressive strength and increased water absorption. By using OSP to replace cement 10% 20% passed the community product standard 602/2547 these were classified as non-load supportive type

This research aims to study the using basalt rock fragments to develop as interlocking block product. The mixture ratios of Portland cement type1: basalt rock fragments are 11 : 6 1 : 6.5 1 : 7 1 : 7.5 and 1 : 8 by weight and water per cement ratio was 0.6 by weight. The interlocking block samples are cast in 10 x 20 x 10 cubic centimeter of dimension with manual compression molding machine. The interlocking block samples were tested in accordance with TCPS 602-2547 standard which subjected for the interlocking block. The results show that the weight compressive strength and thermal conductivity of interlocking blocks with high quantity of basalt rock fragments are lower than interlocking blocks with low quantity of basalt rock fragments while that the water absorption of interlocking blocks with high quantity of basalt rock fragments are higher. From this research the medium and small enterprises could choose the proper ration for the interlocking block production mixing basalt rock fragments as per requirement.

This research aims to study how to use stones Pumice Products is interlocking block for community development. The mixture ratios of Portland cement type1: sand: quarry dust: pumice rock fragments: water that there are 5 ratios. The products were tested by the community TCPS 602-2547 (2004) (Thai): interlocking block. The results showed that interlocking block of stone pumice much a compressive strength and thermal conductivity under a block of stone pumice less. The water absorption is increased When a block of stone pumice much. The optimum ratio and the use of waste rock Pumice highest ratio of cement to stone dust on the stone Pumice water in a 10: 6.4: 0.6: 0.45 to 10: 6.1: 0.9. 0.45 by weight.

The objective of this research is to study about physical mechanical and thermal insulation properties of light-weight Kaolin top soil interlocking block mixed with milk carton waste. The ratio of cement: aggregates (Kaolin top soil and milk carton waste): sanitary water is 1: 7: 1 by weight. 10 ratios of aggregates (Kaolin top soil to milk carton waste ratio) are fixed at 7: 0 6.8: 0.2 6.6: 0.4 6.4: 0.6 6.2: 0.8 6: 1 5.8: 1.2 5.6: 1.4 5.4: 1.6 and 5.2: 1.8 by weight. The interlocking block samples are cast for testing the necessary properties followed the TCPS standard 602-2547. From the experiment the best Kaolin top soil to milk carton waste ratio which has the most milk carton waste and can pass the standard is 6.2: 0.8. The suitable quantity of milk carton waste can reduce the density water absorption and thermal conductivity of Kaolin top soil interlocking block.