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Khan Shahzada
Department of Civil Engineering, University of Engineering and Technology, Peshawar,
Civil Engineering, Building, Construction & Architecture

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Conversion of Waste Marble Powder into a Binding Material Mohammad Adeel Khan; Bazid Khan; Khan Shahzada; Sajjad Wali Khan; Nauman Wahab; Muhammad Imran Ahmad
Civil Engineering Journal Vol 6, No 3 (2020): March
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/cej-2020-03091481

Abstract

In the marble industry, a lot of marble is wasted in the form of odd blocks of various sizes and slurry consisting of water and micro-fine particles. The slurry on drying converts into powder. Both slurry and powder have adverse effects on the environment. This research is focused on the gainful utilization of waste marble powder (WMP) by converting it into a valuable binding material. For this purpose, WMP and clay were collected, and their physical and chemical properties were determined. A mix of WMP and clay was prepared and burnt at a temperature around 1300 oC. The burnt mix was ground to powder form to get marble cement (MC). The MC was then used in mortar. The compressive and flexural strengths of mortar cubes and prisms were determined. Apart from this, X-ray diffraction (XRD) analysis, thermo-gravimetric analysis (TGA) and scanning electron microscopic (SEM) analysis were also carried out. The chemical composition showed that the MC has 52.5% di-calcium silicate (C2S) and 3.5% tri-calcium silicate (C3S).The  compressive strength of MC mortar after 28 days curing is 6.03 MPa, which is higher than M1 mortar of building code of Pakistan (5 MPa). The compressive strength of MC mortar after one year is 20.67 MPa, which is only 17% less than OPC mortar.
Computational Seismic Analysis of Dry-Stack Block Masonry Wall Irfan Khan; Akhtar Gul; Khan Shahzada; Nisar Ali Khan; Faisal Ur Rehman; Qazi Samiullah; Muhammad Arsalan Khattak
Civil Engineering Journal Vol 7, No 3 (2021): March
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/cej-2021-03091668

Abstract

In this research the computational modeling of Dry-Stack Block Masonry (DSM) walls subjected to cyclic monotonic loading testing is done. The analytical results were compared with experimental test results of the unreinforced and unconfined DSM cantilever walls subjected to lateral loading along with a constant axial load. ABAQUS has been used for Finite Element Modeling and analysis of the wall. Various material properties are defined for the wall in the software and modeled as a homogeneous material. The proposed numerical models had a good correlation with the experimental data. The test results discussion includes failure moods, load displacement curves, and stress/strain profile. Doi: 10.28991/cej-2021-03091668 Full Text: PDF
Co-Authors Akhtar Gul Bazid Khan Faisal Ur Rehman Irfan Khan Mohammad Adeel Khan Muhammad Arsalan Khattak Muhammad Imran Ahmad Nauman Wahab Nisar Ali Khan Qazi Samiullah Sajjad Wali Khan