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The effects of pumice aggregate/cement ratios on the low ...

May 01, 2008  In order to analyse the effects of pumice aggregate/cement ratios on the low-strength lightweight concrete properties, seven different pumice aggregate/cement ratios of 6:1, 8:1, 10:1, 15:1, 20:1, 25:1 and 30:1 by weight and cement contents of 180, 137, 110, 72, 52, 40 and 32 kg/m 3 were adopted for the concrete mixtures, respectively.

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The effects of pumice aggregate/cement ratios on the low ...

To analyse the effects of CPA, MPA and FPA/cement ratios on the non-structural concrete engineering properties, the range of different pumice aggregate/cement (A/C) ratios of 6:1, 8:1, 10:1, 15:1, 20:1, 25:1 and 30:1 by weight and cement contents of 180, 137, 110, 72, 52, 40 and 32 kg/m 3 were used to make PALWC mixture testing samples with a ...

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The effects of pumice aggregate/cement ratios on the low ...

To analyse the effects of CPA, MPA and FPA/cement ratios on the non-structural concrete engineering properties, the range of different pumice aggregate/cement (A/C) ratios of 6:1, 8:1, 10:1, 15:1 ...

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The effects of pumice aggregate/cement ratios on the low ...

The effects of pumice aggregate/cement ratios on the low-strength concrete properties. Lightweight concretes can be produced by using processed natural material, processed by-product or unprocessed porous materials, depending upon the requirements of density and strength levels.

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The effects of different fine and coarse pumice aggregate ...

Sep 01, 2005  In order to analyse the effects of different fine and coarse pumice aggregate/cement ratios on the structural concrete properties, five different pumice aggregate/cement ratios of 2:1, 2 1/2:1, 3:1, 3 1/2:1 and 4:1 by weight and cement contents of 440, 375, 320, 280 and 245 kg/m 3 were adopted for the concrete mixtures, respectively. This work was undertaken to determine the required

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The effects of different fine and coarse pumice aggregate ...

To analyse the effects of FPA and CPA/cement ratios on the structural concrete engineering properties, the range of different pumice aggregate/cement (A/C) ratios of 2:1, 2 1/2:1, 3:1, 3 1/2:1 and 4:1 by weight and cement contents of 440, 375, 320, 280 and 245 kg/m 3, respectively, were used to make pumice aggregate lightweight concrete (PALC ...

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The effects of different fine and coarse pumice aggregate ...

To analyse the effects of FPA and CPA/cement ratios on the structural concrete engineering properties, the range of different pumice aggregate/cement (A/C) ratios of 2:1, 2 1/2:1, 3:1, 3 1/2:1 and ...

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THE EFFECTS OF DIFFERENT FINE AND COARSE PUMICE

To analyse the effects of FPA and CPA/cement ratios on the structural concrete engineering properties, the range of different pumice aggregate/cement (A/C) ratios of 2:1, 2 1/2:1, 3:1, 3 1/2:1 and 4:1 by weight and cement contents of 440, 375, 320, 280 and 245 kg/m 3 , respectively, were used to make pumice aggregate lightweight concrete (PALC ...

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A short manual on natural pumice as a lightweight ...

Fibres were added in two ratios (i.e. 0.2 % and 0.4 %) by volume of concrete. A lightweight pumice aggregate was used as a coarse aggregate with a ratio of 65 %. The fresh and hardened LWC properties, such as slump, unit weight, compressive, tensile and

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(PDF) The effects of scoria and pumice aggregates on the ...

The effects of scoria and pumice aggregates on the strengths and unit weights of lightweight concrete. Download. Related Papers. STRUCTURAL LIGHTWEIGHT CONCRETE WITH NATURAL PERLITE AGGREGATE AND PERLITE POWDER A THESIS SUBMITTED TO THE GRADUATE SCHOOL OF NATURAL AND APPLIED SCIENCES OF MIDDLE EAST TECHNICAL UNIVERSITY IN PARTIAL

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Pumce Concrete: Lightweight, Insulating, Durable - Hess Pumice

Low-slump pumice concrete will flow when vibrated, and finishers can get on it much sooner when the slump is held to two-to-three inches. 3 • Avoid over-vibrating or over-finishing pumice concrete. When using normal-weight concrete, segregation and over-finishing cause the paste to come to the top.

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Chemical, Physical and Geotechnical Properties Comparison ...

Mar 10, 2015  The Effects of Pumice Aggregate/ cement ratios on the low – strength concrete properties construction. Building materials, pp: 721-728. Harben, P.W., 1995.The Industrial Minerals ,hand book (2nd ed.).

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The effects of different cement dosages, slumps, and ...

May 01, 2004  Thermal conductivity coefficients of concretes made up of mixtures of pumice aggregate (PA) and normal aggregate were measured. To determine the effect of PA ratio, different cement dosage, and slumps on the thermal conductivity of concrete, 25%, 50%, 75%, and 100% pumice ratios were used in place of normal aggregate by volume, 200-, 250-, 350-, 400-, and 500-kg/m 3 cement

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Investigating the mechanical and microstructure properties ...

Dec 01, 2020  The experimental research used five types of concrete mixtures, which were produced to indicate the effects of PPF and GF. Fibres were added in two ratios (i.e. 0.2 % and 0.4 %) by volume of concrete. A lightweight pumice aggregate was used as a coarse aggregate with a ratio of 65 %.

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A comparative analysis on the effects of pumice, tuff and ...

May 19, 2021  Gündüz L, Uğur İ (2005) The effects of different fine and coarse pumice aggregate/cement ratios on the structural concrete properties without using any admixtures. Cem Concr Res 35(9):1859–1864. Article Google Scholar

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Pumice water absorption, 2

The effects of pumice aggregate/cement ratios on the low . Pumice is the most absorbent rock known, at 50 percent or more porosity; some forms of pumice actually float until the rock absorbs enough water to finally sink.

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Materials Free Full-Text A Literature Review of ...

Concrete is susceptible to damage during and after high-temperature exposure (most frequently in fire). The concrete partial strength re-gain after a high-temperature exposure obtained by the rehydration process is undoubtedly an advantage of this construction material. However, to use fire-damaged concrete, one has to know why the strength deteriorates and what makes the partial re-gain.

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(PDF) The effects of scoria and pumice aggregates on the ...

The effects of scoria and pumice aggregates on the strengths and unit weights of lightweight concrete. Download. Related Papers. STRUCTURAL LIGHTWEIGHT CONCRETE WITH NATURAL PERLITE AGGREGATE AND PERLITE POWDER A THESIS SUBMITTED TO THE GRADUATE SCHOOL OF NATURAL AND APPLIED SCIENCES OF MIDDLE EAST TECHNICAL UNIVERSITY IN PARTIAL

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The effect of pumice as aggregate on the mechanical and ...

Jun 11, 2018  Pumice is a porous rock, which is formed as a result of volcanic activity and does not include any crystal water. Its porous structure makes it lightweight and provides advantage for heat and sound isolation. Foam concrete is a type of lightweight concrete. Foam concrete is obtained by adding the foam obtained from the agent to the mixture of cement, water, and aggregate. Foam concrete is an ...

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[PDF] The effect of polymer coated pumice to the stiffness ...

Pumice has been proven as substitution material aggregate in lightweight aggregate concrete (LWAC). However due to its characteristic, pumice has the disadvantages of its excessive water absorption during preparation of concrete mixture which may reduce concrete strength. Therefore in order to eliminate this additional water absorption, this study investigate the effect of coated pumice in ...

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Experimental Study on Engineering and Thermal Properties ...

gated the effect of different pumice aggregate/cement ratios on the structural properties of concrete. They concluded that: (1) the higher the amount of pumice aggregates in the mixture, the lower the thermal conductivity of the pumice aggregate con-crete;

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Effects of Borıc Acid Additive to Pumice Aggregate ...

Pumice aggregates are used in the production of lightweight concretes due to their low density, good thermal and sound insulation characteristics as well as their admirable resistance against elevated temperatures. In this study, the effects of boric acid addition to pumice aggregate lightweight concrete

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A comparative analysis on the effects of pumice, tuff and ...

May 19, 2021  Gündüz L, Uğur İ (2005) The effects of different fine and coarse pumice aggregate/cement ratios on the structural concrete properties without using any admixtures. Cem Concr Res 35(9):1859–1864. Article Google Scholar

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(PDF) Evaluation of Mechanical Properties of Lightweight ...

To analyse the effects of CPA, MPA and FPA/cement ratios on the non-structural concrete engineering properties, the range of different pumice aggregate/cement (A/C) ratios of 6:1, 8:1, 10:1, 15:1 ...

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[PDF] APPLICATION OF PUMICE AGGREGATE IN STRUCTURAL ...

Lightweight aggregate concretes are widely incorporated in construction and development. This study, presents an experimental investigation on the properties of volcanic pumice lightweight aggregates concretes. To this end, two groups of lightweight concretes (lightweight coarse with natural fine aggregates concrete, and lightweight coarse and fine aggregates concrete) are built and the ...

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Investigating the mechanical and microstructure properties ...

Dec 01, 2020  The experimental research used five types of concrete mixtures, which were produced to indicate the effects of PPF and GF. Fibres were added in two ratios (i.e. 0.2 % and 0.4 %) by volume of concrete. A lightweight pumice aggregate was used as a coarse aggregate with a ratio of 65 %.

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A short manual on natural pumice as a lightweight ...

Abstract As a result of the acceptance of pumice as advantageous and desirable natural lightweight aggregate, pumice is used in concrete and mortar for producing thermal insulation, fire resistance, freeze/thaw resistance, chemical resistance, less alkali-silica reaction (ASR) expansion and lightweight matrix. Adversely, the introduction of pumice aggregate in the matrix reduced mechanical ...

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(PDF) IJCIET_09_13_189.pdf IAEME Publication - Academia

This research aims to study the effects of adding different amounts of Volcanic Pumice (VP) as a volumetric addition to the total volume of the fine aggregate on some physical and mechanical c this aim; eleven concrete laboratory mixes are prepared

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High Performance Fine Grained Concrete with Content of Pumice

Pumice is a volcanic rock that consists of a highly vesicular rough textured volcanic glass. It is very porous and shows a high absorption - it can contain a lot of water. Thanks to its low volume density, it is sometimes used as a light natural aggregate, especially for some small elements such as chimney blocks. The paper is focused on the development of concretes and mortars for these purposes.

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ibrahim ugur Suleyman Demirel University - Academia

To analyse the effects of FPA and CPA/cement ratios on the structural concrete engineering properties, the range of different pumice aggregate/cement (A/C) ratios of 2:1, 2 1/2:1, 3:1, 3 1/2:1 and 4:1 by weight and cement contents of 440, 375, 320, 280 and 245 kg/m3, respectively, were used to make pumice aggregate lightweight concrete (PALC ...

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Effects of Oil Palm Shell Coarse Aggregate Species on High ...

May 29, 2014  L. Gündüz and I. Uǧur, “The effects of different fine and coarse pumice aggregate/cement ratios on the structural concrete properties without using any admixtures,” Cement and Concrete Research, vol. 35, no. 9, pp. 1859–1864, 2005.

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