PAVING BLOCKS FOR THE ELDERLY: A STUDY OF THE PREPARATION OF CONCRETE MIXED WITH CRUMB RUBBER AND BONDED RUBBER
Keywords:Crumb rubber, Shock-reducing paving blocks, Portland cement, Fly ash
This research aimed to study the preparation of shock-reducing paving blocks. Typically, the paving blocks are made of concrete mixed with three different materials, namely crumb rubber, bonded rubber, and shock-absorbing rubber. This research focused on studying the effects of crumb rubber on the characteristics of concrete and the impact of fly ash content on the properties of bonded rubber. The tests showed that concrete had less density and compressive strength when the crumb rubber content increased. The concrete with 10% crumb rubber content by sand weight had the highest compressive strength (156.32 kg/cm2). The vulcanization test of bonded rubber using fly ash as a filler revealed that MH-ML increased when the fly ash content increased. However, the scorch time (TS2) and cure time (TC90) of the rubber were somewhat stable. The mechanical properties test of bonded rubber found that tensile strength, elongation at break, and rebound resilience tended to decrease; on the other hand, the hardness appeared to increase when the fly ash content became greater. However, the bonded rubber with fly ash as a filler could not be chemically bonded with the concrete mixed with crumb rubber. Consequently, it is advisable to design the characteristics of bonded rubber to be physically adhesive to concrete mixed with crumb rubber.
Vudjung C, Prasertsri S, Bamphen C, Krongyut C, Dokchan S, Chuppawa J. Rubber blocks flooring for elder: Effect of pre-vulcanization inhibitor on rubber block flooring properties. Science and Technology RMUTT Journal 2020;10(1):47-60 (In Thai)
Nitisuwanluksa N. Effects of polypropylene plastic ratio in autoclaved aerated concrete on compressive strenght and thermal conductivity. Kasem Bundit Engineering Journal 2016;6(1):174-87 (In Thai)
Amnuaypornlert S, Kanjanakaroon P, Samercher A. A study mechanical behavior of concrete mixed with ceramic fragments two size replaced in aggregate. Kasem Bundit Engineering Journal 2019;9(2):157-82 (In Thai)
Tirasakkosol C, Rakkarn S, Klunkuarmdee A, Suparp S, Surakomol K. A study of pavements repaired by geotextile with asphaltic concrete in the area of administrative organization in chonburi province. Kasem Bundit Engineering Journal 2018;8(1):1-17 (In Thai)
Boonsung A. Compressive strength of paving block from the filtration sand used of water supply. Ladkrabang Engineering Journal 2011;28(4):25-31 (In Thai)
Sae-oui P. Applications of crumb rubber. Research and Development Centre for Thai Rubber Industry 2009;3(3):13 (In Thai)
Chaikaew C, Sukontasukkul P, Utainarumol S. Studies on the use of old tire resale powder in concrete, soft paving blocks. Bangkok: King Mongkut's University of Technology North Bangkok; 2003. (In Thai)
Shu X, Huang B. Recycling of waste tire rubber in asphalt and portland cement concrete: An overview. Construction and Building Materials 2014;67:217-24.
Krammart P. Basic properties of concrete with fly ash and limestone powder. Nakhon Nayok: Faculty of Engineering, Rajamangala University of Technology Thanyaburi; 2010. (In Thai)
Kijcharoenthanarak A. The use of lignite fly ash to make building materials products. Mae Moh Power Plant [Internet]. [cited 2021 Oct 1]. Available from: http://maemoh.egat.com/index.php?option=com_content&view=article&id=89&Itemid=494 (In Thai)
Budnumpecth T, Tanpaiboonkul N. Properties of lightweight concrete containing crumb rubber and cement replacing with fly ash from coal power plant. Veridian E-Journal Science and Technology Silpakorn University 2016;3(4):62-75 (In Thai)
Hanjitsuwan S, Phoo-ngernkham T, Chindaprasirt P. Study physical property of fly ash geopolymer paste containing Portland cement. Industrial Technology Lampang Rajabhat University Journal 2013;6(1):60-9 (In Thai)
Sombatsompop N, Thongsang S, Markpin T, Wimolmala E. Fly ash particles and precipitated silica as fillers in rubbers. I. Untreated fillers in natural rubber and styrene-butadiene rubber compounds. Journal of Applied Polymer Science 2004;93(5):2119-30.
Yangthong H, Pichaiyut S, Jumrat S, Wisunthorn S, Nakason C. Novel natural rubber composites with geopolymer filler. Advances in Polymer Technology 2018;37(7):2651-62.
Markpiban P, Sahamitmongkol R. Effect of synthetic lightweight aggregate on early age shrinkage of mortar. Journal of Thailand Concrete Association 2019;7(2):25-35 (In Thai)
Vudjung C, Saengsuwan S. Biodegradable IPN hydrogels based on pre-vulcanized natural rubber and cassava starch as coating membrane for environment-friendly slow-release urea fertilizer. Journal of Polymers and the Environment 2018;26(9):3967-80.
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