Mechanical Properties of High Strength Concrete Using Mineral Admixtures

Abstract

This paper reports an investigation in which the performance of fly ash, blast furnace slag and silica fume high strength concretes were studied under 7 and 28 curing days. Three high strength concrete mixtures were made in this investigation. Mixtures containing 25% fly ash, 25% fly ash and 25% blast furnace slag, and 5% silica fume as cement replacement, respectively. The water-binder ratio of all the high strength concrete mixtures was kept constant at 0.34. The replacement of silica fume in the high strength concrete mixtures indicated higher value of the compressive strength, splitting tensile and modulus of elasticity. In addition, blast furnace slag is effective for strength and modulus of elasticity improvement between 7 to 28 curing days.

Improving Construction Engineering Properties of Soils Stabilized by a Cement Binder with Techno-Genic Products

“…Inthis article, the optimum moisturewas determined by the method of determining slag activity according to GOST 32820-2014"Automobile roads of general use. Rubble and sand slag [9,15]. Determination of slag activity".…”

Scatter of Constitutive Models of the Mechanical Properties of Concrete: Comparison of Major International Codes

“…, Lotfy and Al-Fayez (2015),Manzi et al (2013),Mohammed et al (2017),Mouret et al (1997),Naik et al (2011),Park et al (2013),Pepe (2015),Sadati and Khayat (2016), Soleymani Ashtiani et al(2013),Tangchirapat et al (2013),Uzal et al (2007),Yang et al (2008),Yiğiter et al (2007),Yildirim et al (2015),Yoshitake et al (2013Yoshitake et al ( , 2014. Most of the data concern crushed LS.…”

Research of Processes of Improving Soil Properties Based on Complex Ash Cement Binder

“…Its storage, while its reserves are estimated in more than 1.5 bln tons (with annual growth of almost 20 mln tons), is needed in huge areas, which leads to long-term saturation of toxic products of decay in soils, underground waters and air. This is stated in these sources [1][2][3][4][5][6][7][8][9][10][11][12].According to the summarized information of application of thermal power-station's solid fuel combustion wastes made by E.N. Putilin and V.S.…”

“…Action mechanism of ashes and slags for reinforcing soils with portland cement is concluded in interaction of its active components with products of hydrolyse cement hydratation and making insoluble in water compounds, mudding pores and decreasing level of water saturation cement soil [11]. Optimal consistence of additions increases as far as consumption of Portland cement decreases: when using 6% of Portland cement it consists 20-30% from total compound mass, with consumption 4-5% -30-35.…”