Paper Contents
Abstract
One of the fastest ways to obtain desiring mix proportion for a concrete without going through rigorous procedures is by optimization. Through optimization, the advantages of investigating the SFRC mechanical properties such as Flexural Strength and Split Tensile Strength can be maximised. This research work is therefore aimed at using Scheffes Second Degree Model for five component mixture to optimize the Flexural Strength and Split Tensile Strength of Steel Fibre Reinforced Concrete SFRC. Using Scheffes Simplex method, the Flexural Strength and Split Tensile Strength of SFRC were determined for different fifteen mix proportions. Fifteen control experiments were also carried out and the flexural and split tensile strengths determined. The result of the students t-test shows that the strengths predicted by the model and the corresponding experimentally observed results are highly correlated. Maximum design strengths recorded for the flexural test at 14 and 28 days were 6.24MPa and 7.06MPa respectively, while those recorded for the splitting tensile test were 3.53MPa and 5.42MPa respectively. Thus, considering its safety and economic advantages SFRC controllable design strength values can easily find applications as concrete flooring for parking lots, playgrounds, airport runways, taxiways, maintenance hangars, access roads, workshops, port pavements, container storage and handling areas, bulk storage warehouses, and military warehouses.
Copyright
Copyright © 2024 K. C. Nwachukwu, D. A. Okodugha. This is an open access article distributed under the Creative Commons Attribution License.
