This is the first part of a two-part article describing the effects of The addition of polymers to a cement matrix can add adding poly(vinyl alcohol) (PVA) to a cement based matrix to irasignificantly to the magnitude of the "adhesion" comprove the bond at the fiber-matrix interface. Two types of fibers were ponent of bond at the fiber-matrix interface. For examused, steel and brass fibers (sim...

Estimating mechanical properties of concrete before designing reinforced concrete structures is among the design requirements. Steel fibers have a considerable effect on the mechanical properties of reinforced concrete, particularly its tensile strength. So far, numerous studies have been done to estimate the relationship between tensile strength of steel fiber reinforced concrete (SFRC) and ot...

Guo, Zherui M.S.A.A., Purdue University, August 2014. Transverse Compression of High Performance Ballistic Fibers. Major Professor: Weinong Chen. High performance ballistic fibers have been in use for decades, specifically in protective applications against ballistic impact such as bulletproof vest layers and aircraft turbine engine fragmentation barriers. These high performance fibers have ext...

Using strong fibers to reinforce a hydrogel is highly desirable but difficult. Such a composite would combine the attributes of a solid that provides strength and a liquid that transports matter. Most hydrogels, however, are brittle, allowing the fibers to cut through the hydrogel when the composite is loaded. Here we circumvent this problem by using a recently developed tough hydrogel. We fabr...

Concrete is a highly versatile construction material thanks to its behavior and mechanical properties. However, little known about improving properties through including additives in manufacture. also has drawbacks, such as brittleness, low ductility poor flexural strength. This used many parts of the structures may be manufactured on site or prefabricated, e.g. form blocks. Including steel alu...

1. Abstract Several experimental studies proved that the standard reinforcement in concrete (rebars) could be improved by short fibers to avoid local warping and cracking. In order to restrain the reinforcing rebars from corrosion, the fibers are basically at help during the curing process of concrete. Particularly in geomechanics, or foundation engineering, where one-sided moistening is expect...

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Hybrid fiber-reinforced polymer composites comprised of glass and steel fibers in a resin matrix have been shown to increased strength energy dissipation compared conventional composites. However, methods for simulating the mechanical behavior combinations hybrid yet be advanced. In this study, non-hybrid with off-axis were manufactured extracted coupons subjected half-cyclic tensile testing. T...