i-manager's Journal on Civil Engineering (JCE)


Volume 12 Issue 1 December - February 2022

Research Paper

Significance of Utilizing Stone Dust and Kadapa Marble Powder in High Strength Concrete

Syed Afzal Basha* , B. Jayarami Reddy**, C. Sashidhar***
* Department of Civil Engineering, G. Pullaiah College of Engineering & Technology, Kurnool, Andhra Pradesh, India.
** RGUKT Ongole Campus, Prkasam, Andhra Pradesh, India.
***Jawaharlal Nehru Technological University, Anantapur, Andhra Pradesh, India.
Basha, S. A., Reddy, B. J., and Sashidhar, C. (2022). Significance of Utilizing Stone Dust and Kadapa Marble Powder in High Strength Concrete. i-manager’s Journal on Civil Engineering, 12(1), 1-9. https://doi.org/10.26634/jce.12.1.18528

Abstract

In the current research work, an attempt has been made to study the properties of high strength concrete using the blend of stone dust and Kadapa Marble Powder (KMP). In M60 grade mix of concrete, fine aggregates are partially supplanted with stone buildup and KMP is being added as a mineral admixture. Manufactured sand and stone dust are being used as fine aggregates in the experimentation. Mechanical properties like compression, split tension and flexural strength have been performed and contrasted with the referral concrete. The aim of the research is to study the impact of replacing natural sand with manufactured sand and stone powder and substitution of cement with KMP on the mechanical properties of high strength concrete. The test results showed clear improvement in the mechanical properties of concrete by using manufactured sand, stone dust and KMP together in M60 bend. The increment in the magnitude of strengths is comparable with conventional concrete. By using stone dust and KMP, additionally, one gets the green benefit of utilizing a characteristic material instead of engineered ones.

Research Paper

Analytical Modeling and Experimental Validation of Balanced Reinforced Geopolymer Concrete Beams

Shankar H. Sanni*
Department of Civil Engineering, Basaveshwara Engineering College, Bagalkot, Karnataka, India.
Sanni, S. H. (2022). Analytical Modeling and Experimental Validation of Balanced Reinforced Geopolymer Concrete Beams. i-manager’s Journal on Civil Engineering, 12(1), 10-23. https://doi.org/10.26634/jce.12.1.18531

Abstract

Structural analysis is used to assess the behavior of engineering structures under the application of various loads. Commonly used structural analysis methods include analytical, experimental and numerical methods. The finite element method has become very popular among engineers and researchers as it is considered to be one of the best methods for solving complex engineering problems efficiently. There are various finite element software packages such as ATENA, ABAQUS, Hypermesh, Nastran and ANSYS to solve the engineering problems. Hence, in the present study ANSYS (Analysis System), finite element software is used for solving the reinforced concrete beams. The results thus obtained are verified with the experiment carried out. The experimental work highlights the study on flexural behavior of conventional and geopolymer reinforced beams with different grades of concrete namely M-30, M-40 and M-50. The test specimens was 100 x 200 x 2000 mm reinforced beams cured at room temperature. The alkaline solution used for present study was the combination of sodium silicate and sodium hydroxide solution with the ratio 2.50. The molarity used for the preparation of geoploymer solution was 12. The beams considered for the study were designed as balanced reinforced sections with percentage of reinforcement varying in the range of 1.45, 2.10 and 2.40. It was observed that the experimental values of reinforced concrete beams were in par with the results obtained with ANSYS modeling.

Research Paper

Effect of using Stone Dust and M-Sand on Properties of High Strength Concrete

Syed Afzal Basha* , B. Jayarami Reddy**, C. Sashidhar***, N. Venkata Ramana****
* Department of Civil Engineering, G. Pullaiah College of Engineering & Technology, Kurnool, Andhra Pradesh, India.
** RGUKT Ongole Campus, Prkasam, Andhra Pradesh, India.
***Jawaharlal Nehru Technological University, Anantapur, Andhra Pradesh, India.
**** Department of Civil Engineering, UBDT College of Engineering, Davangere, Karnataka, India.
Basha, S. A., Reddy, B. J., Sashidhar, C., and Ramana, N. V. (2022). Effect of using Stone Dust and M-Sand on Properties of High Strength Concrete. i-manager’s Journal on Civil Engineering, 12(1), 24-34. https://doi.org/10.26634/jce.12.1.18579

Abstract

Stone dust is a byproduct obtained from the crushing process of quarrying operations and appears as an issue for effective disposal. Natural river sand, which is a common fine aggregate used in production of cement mortar and concrete, has become a costly and scarce material. In this paper, an endeavor is made to find a suitable and economical alternative of sand which serves as waste recovery and its minimization. In this context, an experimental program is being planned to assess the suitability of manufactured sand (M-sand) as finer aggregate content in high strength concrete. The influence of replacing M-sand with stone dust on mechanical attributes of high strength concrete are presented in this paper. Stone dust was incorporated in percentages varying from 0 to 40% as replacements for equal weight of M-sand. The impacts of different extents of dust content on attributes of fresh and solidified concrete are presented after undertaking an experimental probe. Test outcomes revealed that stone dust can be utilized productively to supplant manufactured sand in high strength concrete. No detrimental effects were noticed on long term and microstructural properties of the mix. The maximum strength gain was achieved at a replacement level of 20%, which is due to the acceleration of cement hydration at an early age with the addition of stone dust content.

Review Paper

Alternative Fine and Coarse Aggregates in Concrete: A Review

Naveena M. P.* , G. Narayana**
*-** Department of Civil Engineering, SJC Institute of Technology, Chickballapur, Karnataka, India.
Naveena, M. P., and Narayana, G. (2022). Alternative Fine and Coarse Aggregates in Concrete: A Review. i-manager’s Journal on Civil Engineering, 12(1), 35-42. https://doi.org/10.26634/jce.12.1.18480

Abstract

Concrete is the most commonly used material in the construction industry, with concrete aggregates accounting for 75 percent of the volume. Due to their primary consumption, natural aggregates are subject to depletion, leading to environmental problems. Therefore is an urgent need to develop or manufacture aggregates. This paper critically reviews the available literature on the development of manufactured aggregate for use in cement concrete. This paper has reviewed the literature on available raw materials for the production of aggregates, the properties of aggregates and their suitability in concrete mix. From the review of literature, it was found that the aggregates manufactured with the use of fly ash, plastic waste, oil palm fuel ash, and quarry dust have better properties compared to natural aggregates. The compressive strength of artificial aggregate concrete is 15-20% less than conventional natural aggregate concrete, but still meets the requirements of applications.

Review Paper

New Technologies in Bituminous Pavement Construction

Bhanu Suresh H. S.*
Department of Civil Engineering, ACS College of Engineering, Bangalore, Karnataka, India.
Suresh, H. S. B. (2022). New Technologies in Bituminous Pavement Construction. i-manager’s Journal on Civil Engineering, 12(1), 43-46. https://doi.org/10.26634/jce.12.1.18520

Abstract

The movement of people and goods has been a primitive and eternal need for centuries. Mankind has been moving from place to place in a continuous and lasting struggle for economic survival. To hunt and explore new lands, or to hunt down enemies to find shelters, humanity has been urged to draw and build safe and secure paths, which has led to the development of permanent roads. Road construction around the world, including India, has chronological technological developments. Technological advancements in civil engineering and material usage for the construction of roads has paved way for the development of sustainable roads. This paper reviews recent developments in the construction of bituminous pavements.