Developing high performance concrete for precast/prestressed concrete industry
Akhnoukh, Amin K.; Elia, Hala
High performance concrete (HPC) is a new class of concrete that has superior characteristics compared to conventional concrete. Despite of its superior characteristics, HPC is not widely used in local and international markets due to its high constituent materials cost. This paper presents the research done to develop economic HPC mixes using local materials and conventional mixing and curing techniques. HPC characteristics were attained using supplementary cementitious materials as silica fume and class C fly in partial replacement of Portland cement. Superplasticizers were used to maintain a high flowing ability using a low water-to-powder ratio. Concrete mixes were produced using a high energy mixer to maintain sufficient mix consistency. As a result, concrete mixes with 24 -h compressive strength of 70 MPa and 28-day strength of 105 MPa were produced. Concrete samples tested for expansion using accelerated mortar bar test (AMBT) showed that developed concrete is not susceptible to alkali-silica reaction. Improved characteristics can be used in improving the performance of concrete construction projects, reduce required maintenance, and increase construction projects life-span.
Akhnoukh, Amin K., & Elia, Hala. (October 2019). Developing high performance concrete for precast/prestressed concrete industry. Case Studies in Construction Materials, (e00290. Retrieved from http://hdl.handle.net/10342/8066
Akhnoukh, Amin K., and Elia, Hala. "Developing high performance concrete for precast/prestressed concrete industry". Case Studies in Construction Materials. . (e00290.), October 2019. September 20, 2020. http://hdl.handle.net/10342/8066.
Akhnoukh, Amin K. and Elia, Hala, "Developing high performance concrete for precast/prestressed concrete industry," Case Studies in Construction Materials 11, no. (October 2019), http://hdl.handle.net/10342/8066 (accessed September 20, 2020).
Akhnoukh, Amin K., Elia, Hala. Developing high performance concrete for precast/prestressed concrete industry. Case Studies in Construction Materials. October 2019; 11() e00290. http://hdl.handle.net/10342/8066. Accessed September 20, 2020.