Generally, the concrete with higher strength appears to produce brittle failure more easily. However, the use of mineral admixture can help in enhancing the ductility, energy dissipation, and seismic energy in the designed concrete. This paper presents energy absorption capacity, stiffness degradation, and ductility of the copper slag (CS) admixed reinforced concrete with fly ash (FA) beams subjected to forward cyclic load. The forward cyclic load was applied with the help of servo-hydraulic universal testing machines with 250 kN capacity. Twenty-four beams with a size of 100 mm × 150 mm × 1700 mm made with CS replaced for natural sand from 0% to 100% at an increment of 20%, and FA was replaced for cement from 0% to 30% with an increment of 10% were cast. Beams are designed for the grade of M30 concrete. Based on the preliminary investigation results, compressive strength of the concrete greatly increased when adding these two materials in the concrete. Normally, Grade of concrete can change the behaviour of the beam from a brittle manner to be more ductile manner. So, in this work, flexural behaviour of RC beams are studied with varying compressive strength of concrete. Experimental results showed that the RC beam made with 20% FA and 80% CS (FA20CS80) possesses higher ultimate load-carrying capacity than the control concrete beam. It withstands up to 18 cycles of loading with an ultimate deflection of 60 mm. The CS and FA admixed reinforced concrete composite beams have excellent ultimate load carrying capacity, stiffness, energy absorption capacity, and ductility indices compared to the control concrete beam.

Mechanical Properties of Concrete with Copper Slag and Fly Ash by DT and NDT

The durability of the combination of Fly Ash (FA) and Copper Slag (CS) in concrete is studied in the paper. Experimental study was conducted to determine durability properties such as saturated water absorption, porosity, coefficient of water absorption, sorptivity, rapid chloride ion penetration test, and Alkalinity (pH) test. The microstructure of concrete was tested and quantitative analysis was carried out at the age of 90 days by the scanning electron microscope and energy dispersive X-ray. The results show that concrete properties are improved by the combined use of FA and CS.

In road network bridge construction is one of the most important structures. The use of beam or girder is gaining popularity in bridge engineering fraternity because of it stability, serviceability, economy, aesthetic appearance and structural efficiency. The Project deals with analysis, planning and design of T-Beam Bridge. The proposed site is selected at 1 km away from University College of engineering vilangudi. The replacement of the existing Causeway at Irumpulikurichi Road, this road is intersected with Jayankondam to Trichy NH-227. The peak flow is calculated by using the rational method analysis with the help of slope map which is derived from the SRTM data. The peak discharge at the bridge location is153.54 m³/s and hydraulic head of 3.8m. By using the above T-Beam Bridge designed with the help of computer application is appreciable for this type of structure. Main structural elements and drawings are done by use of the AUTOCADD Software.