Determining on fresh and hardened properties of self-compacting concrete due to the use of various size and percentages of coarse aggregate and chemical admixtures
Nursiah Chairunnisa (a*), Wiku A Krasna (a), Dwi Nurdiansyah (a)
(a) Civil Engineering Program, Engineering Faculty, Lambung Mangkurat University, Indonesia
nursiah.chairunnisa[at]ulm.ac.id
Abstract
Self-compacting concrete (SCC) is a type of concrete which can spread grout of concrete into the mold or formwork without the need of vibrator. Assessing the properties of the grout of SCC is an essential factor for the successful of SCC technology. The objective of this study was to evaluate the effectiveness of various coarse aggregate sizes, and chemical admixtures in producing of SCC. There are three main factors to determine the capability of fresh grout of concrete as SCC namely filling ability, passing ability, and segregation resistance. For this purpose, two chemical admixtures that contain 0.5%, 1.0% and 1.5% by weight of cement also two sizes and percentages coarse aggregates were investigated. Cylindrical molds of 100x200mm were utilized to cast cylinder specimens. Workability of grout concrete was investigated with using Flow test, J-Ring, and L shape test that based on EFNARC standard code for determining fresh concrete and compressive test of hardened concrete. To achieve the objectives of research, casting, and testing of the various type of SCC mixture was carried out. The test results will be compared with different code values for determining the properties of fresh and hardened concrete of SCC
Keywords: coarse aggregate, characteristics SCC, chemical admixtures, cylinder specimens, fresh and hardened concrete
Topic: International Symposium of Civil, Environmental, and Infrastructure Engineering