The objectives of this research are to study the production step proper ratio physical properties mechanical properties and thermal insulation of concrete blocks mixed with waste ceramic powder. The ratios of concrete block mixed with waste ceramic powder include Portland cement type1: quarry dust: waste ceramic powder equal to1: 6.8: 0.2 1: 6.7: 0.3 1: 6.6: 0.4 1: 6.5: 0.5 and1: 6.4: 0.6 by weight. Water per cement ratio are 0.6 by weight. The concrete block samples were castedby the general production as same as the ordinary concrete blocks and were tested follow TIS.58. From the results the best amount of waste ceramic powder which put into concrete block is 1: 6.7: 0.3 of ratio. The proper ratios of waste ceramic powder can decrease the density or weight and increase the thermal insulation efficiency of concrete blocks. However the high amounts of waste ceramic powder effect to decrease the mechanical properties concrete blocks that are lower than TIS.58 standard.

This continued 2nd year researchaims to study the development of the para rubber press machine with wrought pattern for continued 2nd-year. Used natural para rubber mixed in a Ta-kuong by normally practical para rubber farmer style to evaluate the rubber press machine. A machine consists of the 11 roller sets in vertical pathway with press sticks on top. The components are as follows: a water press roller with a slope surface to reduce the diameter around 1-1.5 mm from a center the 3-pair sets of normal press rollers and the 2 duo sets of wrought pattern rubber press rollers with the induction motor at 1430 rpm. The rotating transmission based on belts and chains with a . The evaluated results produced the dried para rubber sheets thickness at 3.79 mm on average as the 2nd rubber sheet type standardin marketing need. From a top tray a farmer can put a sticky para rubber piece to a roller press machine easier than normal just 5.9 second on average with lower hand power to handler of the rubber pieces. In finally the wrought patternrubber sheets by a worker to carry the ta-kuong to a top tray of a rubber press machine and a rubber press man to put the para rubber pieces to a machine thus the completed 186 wrought rubber sheets per hour on average.

The research aims to study and develop the Kaolinite mixed with cement powder for the mass wall. The Kaolinite development process to improve the characteristics. The Kaolinite mixed ratios are 10% 20% 30% and 40% and the result indicated that the experiment mortar-mix ratio at 0:8:2.75:0.2:0.05:0.04:0.5 of cement powder sand Kaolinite limestone superplasticised and clean water compared to No MK control sample covered ASTM standard in tensile strength more than 100 ksc compressive strength of MK20% with superplasticised at 434 ksc. The water absorption values under the standard passed

This research aims to produce the T-BAR particleboard from Physic nuts for interior building which are brought agricultural wastes to used for beneficial materials. Under the Thailand industrial standard (TIS-876-2547) specified the evaluated values such as desnsity water content water absorption thickness swelling bending strength elastic modulus and internal bonded. The experiment and evaluation processes between Physic nuts per Urea Formaldehyde ratio and Physic nuts per Phenol-cyanate based on 90:10 92:8 95:5 and 97:3 in consequence that we found the thickness of particleboard not more than 2 cm. The suitable ratio for Phenol-cyanate 92:8 percentage (Physic nuts 92% with Phenol-cyanate 8%) and suitable ratio for Urea Formaldehyde 90:10 percentage (Physic nuts 90% with Urea Formaldehyde 10%) at 120 Celsius temperature on pressing process. The Phenol-cyanate glue ratio of 0.80 gram per cubic centimeter suited to produce the particleboards averaged water content before pressing 8.89% suitable pressure in process 150 pound per square inch water content 7.65% density 0.818 gram per cubic centimeter water absorption 14.23% during 2 hours thickness swelling 8.02% during 2 hours internal bond 0.56 MPa bending strength 21.45 MPa modulus 2116 MPa. The Urea Formaldehyde glue ratio of 0.82 gram per cubic centimeter suited to produce the particleboards averaged water content before pressing 9.84% suitable pressure in process 152 pound per square inch water content 8.63% density 0.833 gram per cubic centimeter water absorption 14.36% during 2 hours thickness swelling 8.95% during 2 hours internal bond 1.39 MPa bending strength 22.37 MPa modulus 2117 MPa. As the results shown that both of Urea Formaldehyde and Phenol-cyanate with Physic nuts passed the TIS 876-2547 standard. The Physic nuts can produce the particleboards for using inside building.

This research aims to study the development of the Para rubber press machine with wrought pattern for continued 2-year project. Used natural Para rubber mixed in ta-Kuong by normally practical Para rubber farmers to evaluate the rubber press machine. It has developed the 11 roller the 3 plain duo sets of normal press rollers and the 2 duo sets of wrought rubber press rollers with the induction motor at 1430 rpm. The rotating transmission based on belts and chains. The evaluated results produced the dried Para rubber sheets thickness at 3.75 mm. on average as standard market need. From a robber sheet with enough patted on with a worker to carry the ta-Kuong to a top tray and a rubber press man to put the Para rubber piece to a machine on average the completed 185 wrought rubber sheets per hour in shorter time.