in this paper, the effect on the strength properties of high strength concrete (hsc) manufactured with silica fume (sf) and ground pumice (gp) is investigated. portland cement was replaced with sf, gp and combination of sf and gp up to 25%. 22 different concrete mixtures with these replacement ratios were produced by using 0.25 water-binder ratio. the ultrasound pulse velocity, compressive, spl...

This study introduces, two models based on Gene Expression Programming (GEP) to predict compressive strength of high strength concrete (HSC). Composition of HSC was assumed simplified, as a mixture of six components (cement, silica fume, super-plastisizer, water, fine aggregate and coarse aggregate). The 28-day compressive strength value was considered the target of the prediction.  Data on 159...

This research paper is about the Utilization of Silica Fume with Fly Ash and Properties Portland Cement-Silica Fume-Fly Ash-Concrete. Concrete a man or machine-made construction material that has more usage in field, It necessary to make secure safe for making high strength concrete admixture fume best choice compressive very but having Compressive it check porosity this checked resulted. In re...

We report the case of a 42-year-old non-smoking man, who had worked as a carpenter for 6 years and who reported a history of rhinorrhea, paroxysmal sneezing, nasocular pruritus, lacrimation, wheezing and dyspnea attacks while preparing a mixture to seal the junctures between wooden panels. Allergy study consisted of skin prick testing (SPT) to inhalants, foods and Lathyrus sativus flour (LSF) e...

The data presented herein are compiled of the research summary of "Characterization of High-Volume Fly-Ash Cement Paste for Sustainable Construction Application" (Aydin and Arel, 2017) [1]. This data article provides general information about the ASTM Class C and Class F fly ash cement paste composites composed of silica fume, lime, water reducing admixtures in three different level of workabil...

worldwide, asbestos fibers utilized in fiber cement boards, have been recognized as harmful materials regarding the public health and environmental pollutions. these concerns motivate the researchers to find the appropriate alternatives to substitute the asbestos material towards the sustainability policies. in this paper, the applicability of asbestos replacement with three types of agricultur...

In this study, conventional concrete is developed using recycled aggregates with micro silica (silica fume) as admixture. The mix designed for target strength of 25 MPa. Coarse aggregate were partially at 15 %, 30 % and 45 %. relative parameters influencing the studied in terms content respectively. Test results reveled produced 45% tend to reduce by 12% whereas addition fume (10%) enhances com...

If all concrete is to be recycled in a future scenario, will needed. Usually recycling causes loss of properties, but this does not have truth for the mixtures. This paper shows comprehensive knowledge about improving methods used keep properties aggregate (RAC). In reviewed literature several kinds RAC were tested with various replacement ratios. The effect adding steel fibres, silica fume or ...

This research aims to illustrate and express the impact of analytical techniques such as TOPSIS- FTOPSIS-based Taguchi models on obtaining optimum design fiber-reinforced concrete (FRC).Three levels silica fume content, fly ash water-to-cementitious (W/C) ratio, superplasticizer content were examined in present work. However, steel fiber (1%) maximum aggregate size 14 mm kept constant for all m...

Despite the numerous advantages of using concrete with high strength capacity, the brittle behavior of high strength concrete (HSC) and higher production cost has limited its use in the construction industry. This research aims to develop a cost-effective approach for production of high strength self-compacting concrete with desirable performance in either compressive or tensile loading conditi...