Influence of Water to Cement Ratio with Different Amount of Binder on Properties of Ultra-High Performance Concrete

Abstract

Four different compositions of ultra-high performance concrete (UHPC) have been created for this study, while W/C ratio varied from 0.25 to 0.33. Amount of cement, quartz sand and super plasticizer has been maintained constant (at 735 kg/m 3 , 962 kg/m 3 and 36.76 l respectively). Glass powder and silica fume were used as binder. Optimal fineness of glass powder was selected by Chapelle test. In this study different combinations of silica fume, glass powder and quartz powder as microfiller were used. Compressive strength up to 160 MPa was obtained. The main aim of experiment was to create relationships between w/c ratio and compressive strength and to find optimal composition of UHPC. Test methods such as: slump, dynamic viscosity, density, and compressive strength were used. In experiment glass powder was successfully utilized in UHPC.

Mixture design and early age investigations of more sustainable UHPC

“…These obtained results agreed with those of Šerelis et al [66] and Coppola et al [68]. The former showed the high amount of portlandite consumed by SF particles with high specific area, reflecting their reactivity and the second present the delay in compressive strength development when white silica fume is used.…”

“…For lower water-to binder ratio, the slump drops greatly, and the matrix packing is not ensured. This should affect negatively the properties of UHPC [65,66].…”

Mechanical properties and fracture parameters of ultra high performance steel fiber reinforced concrete composites made with extremely low water per binder ratios

“…The slight strength reduction observed in the UHPFRCs with increasing w/b could be attributed to the formation of further unwanted calcium hydroxide (CH) during the hydration process. Furthermore, the inverse relation between w/b and tensile strength was demonstrated also by other researchers [35,36]. Moreover, the results indicated a systematic effect of gradually increasing MSFs content on the growth of compressive strength regulatory.…”

The single and hybrid use of steel and basalt fibers on high‐temperature resistance of sustainable ultra‐high performance geopolymer cement mortars

“…[38][39][40] The water/binder ratio was stable and 0.25 for all UHPGPC mixtures. 41,42 A schematic diagram of the preparation step of the UHPGPC mixtures is given in Figure 2. The material ratios used in the UHPGPC mixtures are given in Table 3.…”

“…The ratio of quartz powder and alkali solution to binder in all UHPGPC mixtures is 1 and 0.33 38–40 . The water/binder ratio was stable and 0.25 for all UHPGPC mixtures 41,42 . A schematic diagram of the preparation step of the UHPGPC mixtures is given in Figure 2.…”