Fiber reinforced concrete (FRC) has been widely used due to its advantages over plain concrete such as high energy absorption, post cracking behaviour, flexural and impact strength and arresting shrinkage cracks. But there is a weak zone between fibers and paste in fiber reinforced concretes and this weak zone is full of porosity, especially in hybrid fiber reinforced concretes. So it is necess...

The correlation of chloride diffusion coefficient and concrete maturity value within 56 days of curing was investigated by the chemically combined water content method, rapid chloride migration (RCM) test, and concrete maturity test. The experimental results showed that chloride diffusion coefficient of concretes decreased not only with increasing curing ages but also with increasing curing tem...

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Abstract—Air-cooled Blast Furnace Slag Aggregate (BFSA) is usually referred to as a material providing for unique properties of concrete. On the other hand, negative influences are also presented in many aspects. The freeze-thaw resistance of concrete is dependent on many factors, including regional specifics and when a concrete mix is specified it is still difficult to tell its exact freeze-th...

The discovery of an innovative category inorganic geopolymer composites has generated extensive scientific attention and the kaleidoscopic development their applications. escalating concerns over global warming owing to emissions carbon dioxide (CO2), a primary greenhouse gas, from ordinary Portland cement industry, may hopefully be mitigated by construction with lower footprint. current manusc...

ii EXECUTIVE SUMMARY Concrete bridges in coastal locations, as are common in Florida, are susceptible to chloride induced reinforcing steel corrosion and to resultant concrete cracking and spalling. Design approaches adapted in the past decade by the Florida Department of Transportation to provide enhanced corrosion resistance include 1) use of high performance concretes; that is, ones with a) ...

Available experimental investigations on the effect of the aggregate-paste ‘interfacial transition zone’ (ITZ) on mass transport properties of cement-based materials appear to be ambiguous. Whilst some studies have found a deleterious effect of the ITZ, results from others seem to suggest otherwise. In the present study, we examined the relative influences of ITZ and microcracking on the oxygen...

Two types of graphene nanoribbons: (a) potassium-split graphene nanoribbons (GNRs), and (b) oxidative unzipped and chemically converted graphene nanoribbons (CCGNRs) were investigated for their magnetic properties using the combination of static magnetization and electron spin resonance measurements. The two types of ribbons possess remarkably different magnetic properties. While a low-temperat...

High performance concrete is not only characterized by its high strength, workability, and durability but also by its smartness in performance without human care since the first day. If the concrete can cure on its own without external curing without compromising its strength and durability, then it is said to be high performance self-curing concrete. In this paper, an attempt is made on the pe...

Geopolymer concrete is sustainable, economical, eco-friendly, durable, and high-strength concrete. a name for the bonding that occurs during binding of materials in alkaline conditions. Due to presence high silica alumina content, pozzolanic could be used as GPC. This research aims check sustainability cost analysis both GPC conventional with their physical, chemical, mechanical properties. The...