A review in high early strength concrete and local materials potential

International Conference of Applied Science and Technology for Infrastructure Engineering

土木建筑工程;材料科学

Yasin, A.K.^1 ; Bayuaji, R.^1 ; Susanto, T.E.^2

Department of Civil Infrastructure Engineering, Institut Teknologi Sepuluh Nopember, JL. Menur 127, Surabaya, Indonesia^1

Department of Research and Product Application, PT Semen Indonesia (Persero) Tbk, JL. Veteran, Gresik, Indonesia^2

关键词: Conventional concrete;    High early strength;    Large buildings;    Local materials;    Making process;    Production cost;    Structural concretes;    Water to cement (binder) ratios;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/267/1/012004/pdf
DOI  :  10.1088/1757-899X/267/1/012004

来源: IOP

【 摘 要 】

High early strength concrete is one of the type in high performance concrete. A high early strength concrete means that the compressive strength of the concrete at the first 24 hours after site-pouring could achieve structural concrete quality (compressive strength > 21 MPa). There are 4 (four) important factors that must be considered in the making process, those factors including: portland cement type, cement content, water to cement ratio, and admixture. In accordance with its high performance, the production cost is estimated to be 25 to 30% higher than conventional concrete. One effort to cut the production cost is to utilize local materials. This paper will also explain about the local materials which were abundantly available, cheap, and located in strategic coast area of East-Java Province, that is: Gresik, Tuban and Bojonegoro city. In addition, the application of this study is not limited only to a large building project, but also for a small scale building which has one to three-story. The performance of this concrete was apparently able to achieve the quality of compressive strength of 27 MPa at the age of 24 hours, which qualified enough to support building structurally.