The Effect of Fiber Glass Reinforcement on Local Materials High Strength Concrete Mixture Properties

Abstract

The usage of high strength glass fiber reinforced concrete (HSGFRC) in the construction applications has been increasing worldwide . these it will definitely have an impact on SUDAN. due to the vast land area available for construction, in addition to the unstable economic conditions , the fast growing population and locally available , strong and relatively cheap, and locally available repairing and strengthening material. The main objective of this investigation is to study the effect of addition of alkali resistant glass fiber reinforced polymer (AR-GFRP) with various proportions typically 0.0 , 0.75 , 1.0 , 1.25 and 1.5 by weight of cement on the mechanical behavior of plain HSC (without fiber) with 28 days cube compressive strength up to 55.2 MPa using available materials in the local market. Results show that it is possible to produce HSGFRC in Sudan using materials that are available at the local markets if they are carefully selected. Based on the experimental results, the compressive strength, splitting tensile strength and density of HSC is found to be increases as fiber percentage increases for both ages 7 and 28 days. The compressive strength of HSC is found in the 28 days percentage of increasing over the reference mix is found to be maximum equal to 7.46% at 1.5 fiber percentage. The density of HSC is found to be increases very slightly as fiber percentage increases from 0.0 to 1.5, typically from 2.415 to 2.442 kg/m3 . The splitting tensile strength of HSC is found in the 28 days‘ percentage of increasing over the reference mix is found to be maximum equal to 52.45% at 1.5 fiber percentage.