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Your search keyword '"Muhammad Kalimur Rahman"' showing total 2 results
Start Over Author "Muhammad Kalimur Rahman" Publisher elsevier
2 results on '"Muhammad Kalimur Rahman"'

1. Fresh, mechanical, and durability properties of basalt fiber-reinforced concrete (BFRC): A review

Author

Ehab T. Al-Rousan, Hammad R. Khalid, and Muhammad Kalimur Rahman

Subjects
Basalt fibers, Basalt fiber-reinforced concrete (BFRC), Fiber-reinforced concrete (FRC), Concrete fresh properties, Concrete mechanical properties, Concrete durability, Engineering (General). Civil engineering (General), TA1-2040, Building construction, TH1-9745
Abstract

Basalt fiber-reinforced concrete (BFRC) is relatively a new type of fiber-reinforced concrete, which has demonstrated good mechanical performance. Several types of fibers such as steel, glass, and carbon fibers, are used to improve the performance of plain concrete. However, basalt fibers (BF) are being considered superior to these because of their comparable mechanical strength, higher durability than glass fibers, lesser cost than carbon fibers, sustainability due to abundant raw material, and environment-friendly production process. Hence, the number of studies on BFRC are increasing over the years. This review paper covers the properties of BF and BFRC. The effects of BF length and dosage are discussed in detail in term of fresh, hardened, and durability properties of BFRC, followed by highlighting some areas for future research. It is concluded that BF can potentially replace the other conventional fibers which are being used in the industry.

Published
2023
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2. Numerical Simulation of Moisture Diffusion in a Concrete Patch Repair

Author

Muhammad Kalimur Rahman

Subjects
Cracking, Materials science, Computer simulation, Moisture, business.industry, Phenomenological model, Structural engineering, Dissipation, Diffusion (business), Thermal diffusivity, business, Durability
Abstract

Publisher Summary Durability of a patch repair has become a major concern in the recent times because of cracking and failures of repair layers over a short span of time. A phenomenological model capable of modeling a chain of critical processes that is set off in a patch repair system and results in the generation and dissipation of stresses in the system is developed. Moisture diffusion, a primary critical process in a repair system is addressed in this chapter. A non linear 2D finite element program diffusion analysis (DIANA)-2D is developed for repair systems. A phenomenological approach in which various transport mechanisms at microlevel are lumped together by defining diffusivity of the material at macroscopic level is adopted. A miniature patch repair system consisting of a thin layer of repair material placed over a hardened concrete substrate is analyzed. The spatial and temporal moisture content is obtained, and the moisture loss history over the specified time intervals is computed.

Published
2001
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