The study was aimed at 1) studying the operation of the professional group in the Bang Sa Community in Amphor Laem Singh Chanthaburi Province and 2) studying the factors that strengthen the professional development in the community. 3) guidelines that promote the strengthening of professional development for the community. The study applied the combination of the quantitative and qualitative research methods. The sampling subjects were the villagers who weave mats from kok plant or reed mats as their supplementary profession. They had not received any constructive professional development. The quantitative data collected were computerized into percentage means and standard deviation. The qualitative data were analyzed for content and subject matter. It was found that 1) the operation was done by the group of housewives who actively participated consulting among each other and dividing the roles and responsibilities such as planting reed cutting reed dyeing the raw material with organic substances designing new patterns on reed fiber and transforming the products. The operation was done based on the folk knowledge that had been passed from generation to generation without using modern technologies. 2) The factors that strengthen the professional development for the community are 2.1) the non-interest loan; 2.2) the experts who can help in designing a variety of fashionable products; 2.3) the sale distribution to distributors & shops or through the website; 2.4) the design of modern patterns that attracts consumers; 2.5) the advertising by the government in many platforms such as TV ads radio ads print ads in newspapers and magazines and product trade exhibition (expo) or festivals like Muang Thong Thani Expo. 3. Guidelines to promote the strengthening of professional development for the community are as follows 3.1 Establishment of community enterprises. Membership Registration To make money together 3.2 Processing of new products that meet the standards Group to produce standard products to meet the needs of the market. To create products or new products. The uniqueness of Laem Sing district. Chantaburi province To enhance produce quality and certifies quality standards for products 3.3 A professional group of reserves 3.4 The amount of capital required to bring a group of professional procurement of materials to members of woven reed mats as its reserve (stock). To support the distribution and resolve shortages 3.5 The need to develop new and advanced packaging to optimize the value of its products 3.6 The study promotion and sponsorship and development group to Develop products to meet customer needs. Channel Marketing and increased sales of the bands career woven reed mats. Laem Sing Chantaburi province.To encourage the development for sustainability. Raise the working group members to understand 3.7 Preparation of accounting systems in a systematic way. Which requires the Commission and members of the profession can be understood together. That can detect clear

This paper present the engineering properties of asphalt (AC 60/70) modified with different ratios of natural rubber. Then select the best properties of the binder to mix asphaltic concrete. From laboratory testing results with adding 6% natural rubber into mixtures for the best results. The properties of asphaltic concrete can be improved by adding 6% natural rubber. For asphaltic concrete Marshall Stability increased and flow decreased with adding natural rubber into asphalt. Comparing to ordinary asphaltic concrete (AC 60/70) the rutting resistance was increased 22% for natural rubber modified asphalt respectively. Moreover the fatigue resistance of natural rubber modified asphalt improved to be 2.06 times compared to AC 60/70.

This research aims to study the possibility of steel fibers plastic fiber (polypropylene) fly ash and metakaolin mixed into the concrete. The concrete used in the research of the w / c 0.42 By 0.5 percent in the volume of steel fiber and poly propylene fiber in the amount of 0.25 percent by weight of the concrete. Concrete example of this test consisted of plain concrete(OPC).Concrete mixing materials pozzolan fly ash mixed plastics synthetic fibers of the type poly propylene fiber(FA/PP)concrete mixing materials pozzolan fly ash mixed plastics synthetic fibers of the type steel fibers (FA/ST) concrete mixing materials pozzolan meta kaolin mixed plastics synthetic fibers of kind polypropylene fiber(MK/PP) and concrete mixing materials pozzolan meta kaolin mixed plastics synthetic fibers of the typesteel fibers (MK/ST) by casting a cylindrical sample size 10 x 20 cm. Sample size 10x10x10 cm. cube and sample size 10x10x35 cm. beam. After 28 days and cure water concrete examples to test the strength of the pull compressive strength and flexural strength. And to test the movement of chloride through the concrete with Chloride Migration Test. Then bring the strength of the pull compressive strength flexural strength and the chloride permeability of concrete. Bringing concrete materials pozzolan mixed with synthetic fibers to develop the quality of concrete with improved efficiency and also reduces the porosity of the concrete. And permeability of chloride formed in the concrete (Only in landscape with the sea). The test can tell. Concrete mixing materials pozzolan with synthetic fibers to make a significant impact on the properties of concrete is improved as well. Depending on the type of polyester and the amount of material to pozzolan blended.

The purpose of this research is to study the effect of a safety system provided for wall tile external building activity on productivity. The safety system composed of (1) stable scaffolding system (2) providing clean and not slip walkways on the scaffold (3) installation of handrails not less than 0.90 meters in height along sides of the scaffold (4) installing safety nets around outside perimeters of the scaffolding (5) indicating working area (6) installing stairs (7) providing protection for people who works below (8) providing tools and equipments for transporting material which are safe and ready for using and (9) providing personal protective equipment for workers. Cost of the safety system is 79318 baht for a wall tile area of 385 m2 or approximately 206 baht/m2. Productivity rates for prior and after the used of safety system are 1.91 and 1.85 m2/person/day respectively. The productivity declines for approximately 3 %. In addition our study found an impact of work is a height of Building the wall tile external productivity could decrease for 6 %.

This objective of this research is to study the development of the pararubber tapping knife in order to determine the optimum of the edge and oblique angle and to compare the efficiency of the electrical motor and Je-Bong knife. The product was manufactured by iron steel carbon S45C and AISI 5160 with 75-90 degree edge knife and 0-45 degrees oblique angle. The results can be concluded that the optimum condition of the edge knife oblique knife and the cutting force were 75 degree 45 degree and 3.51-51.42 N respectively. It was found that the cutting force was straightly increased form 0-51.42 N and then gradually decreased. The energy consumption of timber cutting was 0.00370 J/mm3. The quality of the rubber tap using electrical motor was 72.07% which was higher than 2.8 of Je-Bong knife. As the results this product shows the average of rubber timber which is 2.22 mm. in 22.51 s.