Authors: Pheerawat Plangoen and Somsak Chinvikkai E-mail: email@example.com
Department: Department of Civil Engineering, Siam University, Petchkasem Road, Phasi Chareon, Bangkok, 10160
Published: วารสารวิจัยและพัฒนา มจธ. ปีที่ 41 ฉบับที่ 2 เมษายน – มิถุนายน 2561
This research aimed to improve the properties of mortar mixed with pre-vulcanized latex that can be used to repair jointed irrigation canal crack and maintain irrigation canal to prevent water seepage. Laboratory tests were performed to study the mechanical properties of the mortarin terms of the compressive strength, flexural strength, tensile strength, water absorption and seepage loss. Different proportions of mortar to polymer concrete (P/C) viz. 5%, 10% and 15% by weight were used; normal mortar was also tested. Water latex solution to cement ratio (w/c) was varied at 0.4, 0.5 and 0.6.The results indicated that the P/C value of 5% and w/c of 0.4 yielded the sample of the best performance. The mixture on its 28th day of incubation possessed the compressive strength of 310 ksc, flexural strength of 70 ksc, tensile strength of 46 ksc, water absorption of 5.35% and seepage loss of 13.64 mm/day. Considering the satisfactory performance of the prepared material, it was used for repairing the irrigation canal walls and irrigation canal cracks in the Pasak dam operation and maintenance project in Lop Buri Province. Preliminary evaluation indicated that the repaired irrigation canals allowed water to flow more quickly and easily. Reduction in the seepage loss has resulted in a significant increase in the irrigation efficiency.
Keywords : Mortar / Pre-vulcanized Latex / Mechanical Properties of Mortar / Irrigation Canal
The Development of Mortar Mixed with Rubber Latex for Lrrigation Canal Maintenance