This paper aims at studying the impact of reaction that occurs between contaminants present in soil and silica fume added on chemical, physical mechanical properties soil. The samples were contaminated laboratory with nickel nitrate (Ni(NO3)2). Silica (SF) was to three different ratios (3%, 5%, 10%). Several experiments conducted study characteristics before after adding results revealed increm...

abstract: Alkali-silica reaction (ASR) is one of the most harmful distress mechanisms that affects durability concrete worldwide. Yet, it has been found ASR-induced expansion and may be prevented by appropriate use supplementary cementing materials (SCMs). Recent studies suggest rice husk ash (RHA), a by-product production, present promising performances as pozzolanic material to enhance blende...

Ultra-high-performance concrete (UHPC) is a kind of high-tech cementitious material with superb mechanical and durability properties compared to other types concrete. However, due the high content cement silica fume used, cost environmental impact UHPC considerably higher than conventional For this reason, several efforts around world have been made develop greener less expensive local pozzolan...

Abstract Blended Palm Oil Fuel Ash (POFA) concrete has the potential for application in organic acid environments such as peat land. However, there is a need to improve resistance of blended POFA using silica fume pozzolanic material. There are limited studies admixed with exposure. In this study, compressive strength, porosity, and sorptivity been investigated by exposing samples water. Portla...

In this investigation, silica fume (SF) was used as an additive material to study its influence on the characteristics of expansive soil. The soil in research prepared a lab by mingling bentonite (50 percent dry weight) with natural According (USCS), classified (CH) liquid limit 67.5 and plastic 29.3%. Expansive mixed different percentages (SF), (8, 9, 10, 11, 12, 13%), experiments were conduct...