The Mechanical Properties of Lightweight Concrete Made with Lightweight Aggregate Volcanic Pumice

Parmo, Parmo; Tavio,; Suriani, Efa; Prianto, Kusnul; Haqi, Faruq Ibnul

doi:10.5220/0008906501670171

Cited by 7 publications

(4 citation statements)

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“…This value indicated that the pumice sand qualified as an aggregate for the manufacture of lightweight structural concrete. The results also proved that a Moderate Strength Concrete was produced, with a compressive strength value of less than 16.35 MPa [19]. In this case, the six 15 x 30 cm test objects (cylindrical concrete) produced were tested for their compressive strength.…”

Section: Introductionmentioning

confidence: 72%

Determination of Geopolymer Mortar Characterization Using Fly Ash and Pumice Sand

Sultan¹

2022

GEOMATE

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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.

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Section: Introductionmentioning

confidence: 72%

Determination of Geopolymer Mortar Characterization Using Fly Ash and Pumice Sand

Sultan¹

2022

GEOMATE

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“…Improvements are always being made to these weaknesses, such as adding fibre reinforcement and partially substituting less expensive binder ingredients for cement. [1] Adding lightweight aggregates to the concrete mixture to partly or completely replace the usual weight aggregates is one way to create a lightweight aggregate concrete (LWAC). Choosing and using the appropriate lightweight aggregates is crucial to making LWAC with the correct unit weight and good mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Effect of Sustainable Fibres on Properties of Structural Perlite Concrete Containing Local, Sustainable Materials

Qassem,

Aljalawi

2024

Construction Technologies and Architecture

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For sustainability in the construction field, finding a substitute for cement and recycling the waste in concrete is important. This paper shows the effect of sustainable copper fibres on some properties of perlite structural lightweight concrete containing sustainable materials. Research includes slump, density, compressive strength, flexural strength and thermal conductivity tests. The materials used to cast the specimen are ordinary Portland cement, local ash, metakaolin, combined coarse and fine perlite aggregate, and super-plasticizer. The concrete is reinforced with 1% copper fibres by volume of concrete. The results show that adding sustainable material to the concrete increased compressive strength by a percentage of 2.79% for 28 days and improved flexural and tensile strength by 40% and 8.36%, respectively, at 28 days. The density was within the limits of structural lightweight concrete, while the thermal conductivity was within the limits of insulation concrete, in addition to economic benefits and reducing world waste.

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“…However, the coated specimen has the ability to increase the beam's flexural strength [8]. The use of pumice as coarse aggregate can significantly reduce the concrete volume weight and also has the ability to produce compressive strength which is included in the range of lightweight concrete [9][10][11]. It has also been reported to have produced a slightly lower compressive strength compared to normal concrete and this means there is a need for additional materials to maintain the compressive strength at a lighter weight [12].…”

Section: Introductionmentioning

confidence: 99%

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

Sultan¹

2021

GEOMATE

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This research was conducted to analyze the flexural behavior of unreinforced concrete beams produced by substituting coarse aggregate with pumice stones in order to reduce the weight. The specimens used were designed to be 15x15x70 cm in dimension while the coarse aggregate was replaced by the pumice stone at 25%, 50%, 75%, and 100%. Test object without pumice stone (0%) as control beams. The test was conducted at a two-point load with the beam loaded up to the period it failed. The results showed the partial substitution of a higher percentage of the coarse aggregate with pumice produced lower flexural capacity and the beams become lighter with the weight recorded to have reduced by 20.05%. This means the partial replacement of more coarse aggregate with pumice stone has the ability to reduce the weight of the beam and its flexural strength. The use of pumice as a substitute for coarse aggregate in unreinforced concrete beams against tensile strength is good because the tensile strength tends to be higher than the tensile strength of concrete in general.

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The Mechanical Properties of Lightweight Concrete Made with Lightweight Aggregate Volcanic Pumice

Cited by 7 publications

References 0 publications

Determination of Geopolymer Mortar Characterization Using Fly Ash and Pumice Sand

Determination of Geopolymer Mortar Characterization Using Fly Ash and Pumice Sand

Effect of Sustainable Fibres on Properties of Structural Perlite Concrete Containing Local, Sustainable Materials

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

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