Mechanical Behavior of Self Compacting Concrete (SCC) Using Seawater and Sea Sand Strengthened by Steel Fiber

  • Adri Raidyarto, Herman Parung, M. W. Tjaronge, Rudy Djamaluddin
Keywords: Self Compacting Concrete (SCC), Seawater, Sea sand, Steel fiber

Abstract

It is essential to maintain the national unity of the archipelagic state of Indonesia and for this reason, it is necessary to implement equitable infrastructure development to the remote islands. In many countries including Indonesia, concrete is an important material widely used to support infrastructure development. Materials in the form of clean water and river sand are prominent ingredients for making concrete. The use of seawater and sea sand as concrete materials will significantly assist in constructing infrastructures in remote islands that lack clean water. This research prepared two mixtures, where the first mixture was made of seawater, sea sand, blended cement, river crushed stone, and superplasticizer to produce self-compacting concrete (SCC). Steel fiber with hook ends were added 1% by weight in the second mixture, and other compositions were the same as in the first mixture. Investigation results showed that the compressive strength of both two SCC mixtures increased from 3 to 28 days of curing age. Both SCC mixtures can accept compressive loads well, and based on their elasticity, peak stress, peak strain and post-peak stress-strain up to 80% of peak load resembling normal concrete made of coarse aggregate from land material (river rock or mountain rock), river sand, superplasticizer and Portland cement-based cementitious material. Steel fibers were able to blend well with other constituent materials so that the second design mix has better compressive strength and elasticity than the first design mix without steel fibers.

Published
2021-08-07
How to Cite
Rudy Djamaluddin, A. R. H. P. M. W. T. (2021). Mechanical Behavior of Self Compacting Concrete (SCC) Using Seawater and Sea Sand Strengthened by Steel Fiber. Design Engineering, 7145-7156. Retrieved from http://thedesignengineering.com/index.php/DE/article/view/3229
Section
Articles