This research studies on the possibility of producing a more sustainable lightweight brick. Natural cellulose fibre produced from leaf and wood aggregates, lime and soil from local area of Thailand were added into the brick with minimizing Portland cement content. Effects of varied amount of cellulose fibre contents typically (10, 15, 20, 25, 30, 35, 40, 45, 50, 55 and 60 %) on mechanical and thermal properties of bricks are studied. Mechanical performances have been investigated with compressive, flexural strength and thermal conductivity of the samples. Also, the Leachate Extraction Procedure is observed. Results showed that adding more cellulose fibre contents can reduce the thermal conductivity, density including the compressive and flexural strength of the brick. On the other hand, the water absorption increases. It is also shown that the composite bricks can add fibre contents up to 55% by weight that can be used as non-load bearing concrete masonry units considered by the compressive strength. By conclusion, this application may be an interesting solution in order to improve sustainability and energy efficiency of the low cost house in local area of Thailand.

This work presents a study on the investigation of recycled waste tyre (crumb rubber) as aggregate in the combination of local soil-cement brick. The purpose is to develop a lightweight brick with low thermal conductivity that can produce as low cost materials in local area of Thailand. The different amount of crumb rubber particles at 0, 10, 15, 20, 25, 30 and 40% were replaced to local Ratchaburi soil by weight and then mixed with a constant of Portland cement content at 10%. The mechanical properties were studied and indicated that a significant reduction in sample unit weight, there by resulting in a reduction of compressive strength and flexural strength. The results show that the presence of air voids and crumb rubber particles in the matrix can increase the water absorption but decrease the thermal conductivity. However, according to ASTM indicates that this hybrid material can be used as non-load bearing concrete masonry units (2.45 MPa) and is also suitable for construction as low cost and low energy consumption house in Thailand.

Making geological map Muangmai sub-district, Amphawa district, Samutsongkram Province area of Thailand is the example area. The conclusion of making map, which use the land section data together with the an aerial photography ortho- colour type and coordinate by GPS in field work and store data in digital map format, is totally 1,045 plots. These areas are summary of 3,944,000.00 m2 classified into 118,400.00 m2 for public roads, 108,800.00 m2 for public canals, 3,563,200.00 m2 for dwellings and agricultural lands and 153,600 m2 for public places, temples and schools.

This work studies the development of using the Mae-Khong Flat Shape Alluvial Gravel which mostly found in Mae-Khong River as the raw material of the concrete combinations (GVCM) to produce the non-bearing thin wall. There are three main material properties investigated: the compressive strength, the tensile strength and the thermal conductivity. All properties are also compared with limestone concrete (LSC) which is widely used in normal concrete works. Results show that all properties of both materials increase with increasing cured time. For GVMC, the compressive strength increases as 6.66% for cured time from 28 to 180 days. The ratio of compressive strength to tensile strength is 8.69 compared with LSC which the value is 8.89. These can confirm that GVCM has the enough quality to produce the non-bearing materials according to the Thai community product standard.

This research studies on the possibility of producing a more sustainable lightweight brick. Solid waste bottom ash (SBA) and lime found in area of Ratchaburi province of Thailand were mixed into the composite brick for the replacement of fine aggregates and Portland cement contents, respectively. Effects of varied amount of SBA and local lime contents typically (10, 20, 30, 40 and 50% by weight) on mechanical and physical properties of bricks were studied. Results showed that with the replacement cement and fine aggregate of 20% by weight with SBA and local lime, respectively showed the maximum values. Similarly, the thermal conductivity and density and product weight showed the maximum values at the same replacement contents. By conclusion, this application may be an interesting solution in order to improve sustainability and energy efficiency of the low cost house in local area of Thailand.