Journal of Ceramics and Concrete Sciences

Reducing Plastic Waste as Partial Replacement of Fine Aggregate in Cement Bricks

Mon, 29 Apr 2024 00:00:00 +0000

Plastic materials are natural polymers of high sub-atomic mass and regularly contain other
substances. They are typically engineered, for the most part, from the petrochemicals. Plastic is
utilized for numerous reasons at various scales, such as ease of assembly, flexibility, nondestructiveness,
and impenetrability to water. We cannot prevent plastic from reaching the soil or
water. We are using plastic as one of the construction materials. Plastic replacement is done as a
fine aggregate in bricks by mixing the plastic powder in 0%, 2.5%, 5%, 7.5%, and 10%. It is
observed that both the test results have high compressive strength and less water absorption
compared to the IS standards of IS: 3495 (Part I to IV) 1992.

Comparative Strength Analysis of Concrete with Nylon Fiber in Different Curing Media

Shariar Yeamin Rafi, M.M Nafiz Niaz, Jayed Miah, Mominul Islam, Aminul Haque — Tue, 23 Apr 2024 00:00:00 +0000

The compressive strength and splitting tensile strength of concrete reinforced with nylon fiber are examined in this work. Tests were done on concrete mixtures including different quantities of nylon fibers to see how they affected the mixtures compressive and splitting tensile strengths. The results show that adding nylon fibers to concrete usually improves its compressive strength and splitting tensile strength, with the highest performing concentrations. The use of nylon fiber-reinforced concrete (NFRC) has drawn interest as a possible way to improve both the durability and strength of regular concrete. The purpose of this study was to investigate how the performance of concrete is affected by the addition of nylon fiber. The addition of various percentages of nylon fibers to the concrete mix is 1%, 1.5%, 2% and 2.5% by volume. The mixtures were made with common ingredients for concrete, including water, fine and coarse aggregate, and cement. The greatest gains were mechanical qualities and durability was noted at 2.5% by volume, which was determined to be the ideal dosage of nylon fibers. The results of the study showed that the A5 mould with the highest proportion of nylon fiber (2.5%) used in water curing for 28 days had compressive strengths of about 36.62 MPa, 10.41 MPa in H2SO4 curing and 30.33 MPa in NaCl curing and splitting tensile strength 5.10 MPa in water curing, 1 MPa in H2SO4 curing and 4.96 MPa in NaCl curing.

Shear Wall Positioning for Multistorey Buildings to Minimize the effects of Lateral Forces

Asha Bhayal, Rahul Sharma — Wed, 01 May 2024 00:00:00 +0000

Their considerable strength and stiffness in the plane allow them to sustain weights due to gravity
and resist heavy horizontal loads simultaneously. Therefore, it's essential to identify the best
places for shear walls. The placement of shear walls must be precise; otherwise, bad things could
happen. This research involves a study to ascertain the consequences of adding shear walls and
the best through drastic shear wall position changes. Regarding G+10-storey buildings, ETABS
has examined four distinct scenarios of shear wall placements. In compliance with Indian
Standards, the framed structure was tested for lateral and gravity stress. The findings were
reviewed to establish the best location for the shear walls. In compliance with Indian Standards,
the framed structure was tested to lateral and gravity stress. The findings were examined to
establish the best location for the shear walls. Due of its great strength and plane rigidity, they can
withstand heavy horizontal loads at the same time.

Analyze the Behaviour of Reinforced Geo-Polymer Concrete and Reinforced Concrete Beam with the Help of Ansys

Rahul Kumar, Manendra Pratap Verma — Fri, 26 Apr 2024 00:00:00 +0000

We aim to demonstrate the significance of finite element (FE) modeling in structural element
analysis, particularly in understanding the behavior of reinforced geo-polymer concrete beams
until failure. We emphasize the importance of utilizing realistic material properties in FE models
to accurately represent the behavior of the structure under various loading conditions.
Our study focuses on investigating the flexural strength, load-deflection characteristics, and
failure modes of reinforced geo-polymer concrete beams. By incorporating the actual material
properties into our FE model, we can simulate the behavior of the structure with high fidelity.
Through comprehensive analysis, we intend to provide detailed insights into the critical
distribution of stresses and effective strains within the members, including the steel reinforcement.
Understanding these factors is crucial for assessing the structural integrity and performance of the
beam under flexural loading.
The utilization of nonlinear models enabled by advanced computer software enhances the
accuracy of our simulations. Nonlinear modeling accounts for material nonlinearities, such as
stress-strain relationships, which are essential for accurately predicting the behavior of concrete
structures, especially under large deformations and failure conditions. In this paper we take M25
grade of reinforced concrete and geo polymer based reinforce concert and calculate shear force,
bending moment and deflection and we find geo polymer based concrete showing better result in
compare to RCC concrete by using ANSYS software.

Review on Seashell Ash as Partial Cement Replacement

Guru Sharan Mishra — Fri, 22 Mar 2024 00:00:00 +0000

The review paper focuses on utilizing various sea shell ashes, including cockle, clam, oyster,
mollusc, periwinkle, snail, and green mussel shell ash, as partial replacements for cement. It
aims to promote environmental sustainability and mitigate the issues associated with global
warming. Cement production is known to have significant environmental impacts across all
stages, including air pollution through dust and gases, as well as noise and vibration during
quarrying and milling processes. One proposed solution is the adoption of modified cement,
which refers to cementitious materials designed to match or surpass the performance of Portland
cement while incorporating recycled and waste materials, thereby reducing the demand for
raw materials and promoting sustainability in construction. Utilizing sea shell ash as a
partial replacement for cement in concrete has the potential to yield substantial energy
savings and offer significant environmental advantages. Previous investigations have explored the
chemical and mechanical properties of concrete produced with sea shell ash replacements,
including specific gravity, chemical composition, compressive strength, tensile strength, and
flexural strength. The results indicate that the optimal replacement percentage for sea shell
ash in cement lies within the range of 4–5%.