University of Technology-IraqEngineering and Technology Journal1681-6900311320130801High Performance of Silica Fume Mortars for Ferrocement Applications247724888317010.30684/etj.31.13A.6ENM. A. MashreiGh. M. KamilH. M. OleiwiJournal Article20130801The current study deals with obtaining the high performance mortars to use in the<br /> applications of ferrocement. The main problem that has greatly affected the<br /> performance of mortar is the workability. A low water-cement ratio mostly resulted in<br /> increases in the compressive strength and led to the enhancement of durability<br /> characteristics, but decreases in the workability.<br /> Workability becomes an important factors, as the mortar has to easily penetrate<br /> between the layers of the mesh wires. A reasonably workable with high strength<br /> cement mortar can be obtained by using a high cement content coupled with the use<br /> of silica fume and superplasticizers. In this investigation a series of compression tests<br /> were conducted on 50 mm cube and 150 ×300 mm, cylindrical specimens to obtain<br /> the compressive strength and the stress-strain behavior of mortar with silica fume and<br /> superplasticizers and flexural tests were conducted on 50 ×5 0 × 200 mm prism to<br /> obtain the modulus of rupture. The results of this study indicated that the variation in<br /> mortar strength depend on the water-to-binder ratio of the mix and percentages of<br /> cement replacing. The effects of these parameters on the stress-strain curves are<br /> presented. The best replacement percentage of silica is 3% was concluded in this<br /> study. From the experimental results a mathematical model has been developed to<br /> predict the 28-day compressive strength of silica fume mortar with different water-tocementitious<br /> ratios and superplasticizers percentagehttps://etj.uotechnology.edu.iq/article_83170_d5605d422f33a0df98916a882c1cbb17.pdf