Review of the Flexural Strength of Lightweight Concrete Beam Using Pumice Stone as of Substitution Partial Coarse Aggregate

Sultan, Mufti Amir

doi:10.21660/2021.85.j2184

Cited by 6 publications

(3 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The specimens were crafted with dimensions measuring 15x15x70 cm, and variations were introduced by replacing the coarse aggregate with pumice stone at 25%, 50%, 75%, and 100%. A control beam, devoid of any pumice stone (0%), was also included for comparative testing purposes [2]. Using waste materials as an alternative to coarse aggregate has been shown to affect the environment and the economy positively.…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Concrete with Replacement of Pumice and M-Sand: A Comprehensive Analysis

Sai Kumar,

Greeshma,

Rambabu

et al. 2024

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

Since there is a deficit of raw materials available for construction, concrete is essential in designing concrete structures in the modern world. As a result, the construction sector is now familiar with cutting-edge techniques that utilize waste material that is readily available for partial replacement by substituting alternative aggregates for regular aggregates. In this study, pumice stone located in the lowest section of the ocean or the abyss of red clay is utilized in place of concrete, with a replacement in a portion made of pumice mixed with cement. Concrete’s mechanical and physical durability was examined by measuring its Split and compressive strengths of ordinary concrete and substituting it with varying quantities of pumice (10% to 30%). M sand is entirely replaced in fine aggregate. From the previous studies, it shows the 50% of Coarse aggregate replacement and here we investigate how well partial pumice substitutions for coarse aggregate and M sand substitutions of fine aggregate can gain sufficient strength. Based on the experimental results, the current thesis compares the properties of conventional and replaced concrete for the various percentages of pumice stone replacement to coarse aggregate. It concludes that a 25% partial replacement by pumice yields the maximum compressive strength. We also studied the durability parameters in the present paper.

show abstract

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Concrete with Replacement of Pumice and M-Sand: A Comprehensive Analysis

Sai Kumar,

Greeshma,

Rambabu

et al. 2024

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

show abstract

“…Studies revealed that lightweight concrete slabs showed almost the same behavior as the normal weight concrete but because of the reduction in stiffness and ductility they exhibit large deflection and less ductility. Besides, moment capacity is stated to be related to the tensile reinforcement rather than the effect of the weight or strength of the concrete [8][9][10][11][12][13][14][15][16]. In order to increase the stiffness properties of the flexural members, high-strength lightweight concretes were utilized, and good performances were reported [9,17].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Voids on Flexural Capacity of Reinforced Concrete Slabs

Kıpçak

Erdil

Karaşin

2023

Period. Polytech. Civil Eng.

View full text Add to dashboard Cite

The voided reinforced concrete slab system is mainly produced with polyester foam placed mostly at the bottom of the slab. The aim of the voids is to reduce the weight of the slab. In this paper behavior of the voided reinforced concrete slabs in which voids placed at the mid-height of the slab cross-section, is examined analytically. A series of models were created to come up with a lightweight slab. Two distinct slab models were analyzed using the ABAQUS software. In the first group, slabs had three layers, in which bottom and top layers were of solid reinforced concrete, but the mid layer was of voided unreinforced concrete. In the second layer, in order to increase the contact between top and bottom layers of the slab, crossties were utilized, and the mid layer was reinforced accordingly. Since all the layers were 5 cm thick, the total thickness of the slabs were 15 cm. Slabs were 100 cm wide and 200 cm long. They were simulated the three-point bending test. Concrete damaged plasticity material model (CDPM) for concrete and elastoplastic material model for steel was selected. From the results it was found that moment capacity decreased with the increase in the volume of the voids. There was a sudden decrease in strength after reaching the yield strength in voided slab without a crosstie. In addition, crossties enabled the reduction of the weight of the slabs without significant decrease in moment capacity.

show abstract

“…This sand is an abundant material in Indonesia, mostly distributed in Jambi, Lampung, West Java, Banten, Jogjakarta, West and East Nusa Tenggara, as well as North Maluku. For the North Maluku region, the aggregate deposits are precisely located on Tidore Island [15].…”

Section: Introductionmentioning

confidence: 99%

Determination of Geopolymer Mortar Characterization Using Fly Ash and Pumice Sand

Sultan¹

2022

GEOMATE

View full text Add to dashboard Cite

The cement-making process is one of the highest contributors to atmospheric CO2 levels, leading to wide consideration and analysis of alternative cement substitutes. One of the materials widely used as a substitute is fly ash, whose properties are similar to cement. It is also abundant in nature due to the combustion of coal furnaces at the Rum Steam Power Plant. Therefore, this study aims to determine the effect of heating in the geopolymer mortar treatment process. The test object was a cube mortar containing a mixture of cement, fly ash, water, and an activator, with dimensions of 5 ×5 ×5 cm 3 . The utilized Class-C fly ash also had a calcium content above 10%. In this process, the specimens produced were then heated in an oven for 24 h at temperatures of 20°C, 40°C, 60°C, 80°C, and 100°C. This heating process emphasized the determination of the best temperature responsible for the production of maximum compressive strength in geopolymer mortar. Based on the results, higher heating temperatures led to better compressive strength. This indicated that the 8M and 10M geopolymer mortar produced compressive strength of 17.60 and 18.60 MPa at 100°C heating, respectively. In addition, higher molarity provided better compressive strength in geopolymer mortar.

show abstract

Review of the Flexural Strength of Lightweight Concrete Beam Using Pumice Stone as of Substitution Partial Coarse Aggregate

Cited by 6 publications

References 7 publications

Performance Evaluation of Concrete with Replacement of Pumice and M-Sand: A Comprehensive Analysis

Performance Evaluation of Concrete with Replacement of Pumice and M-Sand: A Comprehensive Analysis

The Effect of Voids on Flexural Capacity of Reinforced Concrete Slabs

Determination of Geopolymer Mortar Characterization Using Fly Ash and Pumice Sand

Contact Info

Product

Resources

About