Pumice Lightweight Aggregate Concrete Research Articles

Under Sulfate Dry–Wet Cycling: Exploring the Symmetry of the Mechanical Performance Trend and Grey Prediction of Lightweight Aggregate Concrete with Silica Powder Content

In order to improve the mechanical properties and durability of lightweight aggregate concrete in extreme environments, this study utilized Inner Mongolia pumice as the coarse aggregate to formulate pumice lightweight aggregate concrete (P-LWAC) with a silica powder content of 0%, 2%, 4%, 6%, 8%, and 10%. Under sulfate dry–wet cycling conditions, this study mainly conducted a mass loss rate test, compressive strength test, NMR test, and SEM test to investigate the improvement effect of silica powder content on the corrosion resistance performance of P-LWAC. In addition, using grey prediction theory, the relationship between pore characteristic parameters and compressive strength was elucidated, and a grey prediction model GM (1,3) was established to predict the compressive strength of P-LWAC after cycling. Research indicates that under sulfate corrosion conditions, as the cycle times and silica powder content increased, the corrosion resistance of P-LWAC showed a trend of first increasing and then decreasing. At 60 cycles, P-LWAC with a content of 6% exhibited the lowest mass loss rate and the highest relative dynamic elastic modulus, compressive strength, and corrosion resistance coefficient. From the perspective of data distribution, various durability indicators showed a clear mirror symmetry towards both sides with a silica powder content of 6% as the symmetrical center. The addition of silica fume reduced the porosity and permeability of P-LWAC, enhanced the saturation degree of bound fluid, and facilitated internal structural development from harmful pores towards less harmful and harmless pores, a feature most prominent at the 6% silica fume mixing ratio. In addition, a bound fluid saturation and pore size of 0.02~0.05 μm/% exerted the most significant influence on the compressive strength of P-LWAC subjected to 90 dry–wet cycles. Based on these two factors, grey prediction model GM (1,3) was established. This model can accurately evaluate the durability of P-LWAC, improving the efficiency of curing decision-making and construction of concrete materials.

Durability Improvement of Pumice Lightweight Aggregate Concrete by Incorporating Modified Rubber Powder with Sodium Silicate.

To improve the durability of pumice lightweight aggregate concrete applied in cold and drought areas, sodium silicate-modified waste tire rubber powder is used to treat the pumice lightweight aggregate concrete. The pumice lightweight aggregate concrete studied is mainly used in river lining structures. It will be eroded by water flow and the impact of ice and other injuries, resulting in reduced durability, and the addition of modified rubber will reduce the damage. The durability, including mass loss rate and relative dynamic elastic modulus of pumice lightweight aggregate concrete with different sodium silicate dosages and rubber power particle sizes, is analyzed under freeze-thaw cycles, and the microstructure is further characterized by using microscopic test methods such as nuclear magnetic resonance tests, ultra-depth 3D microscope tests, and scanning electron microscopy tests. The results showed that the durability of pumice lightweight aggregate concrete is significantly improved by the addition of modified waste tire rubber powder, and the optimum durability is achieved when using 2 wt% sodium silicate modified rubber power with a particle size of 20, and then the mass loss rate decreased from 4.54% to 0.77% and the relative dynamic elastic modulus increased from 50.34% to 64.87% after 300 freeze-thaw cycles compared with other samples. The scanning electron microscopy test result showed that the surface of rubber power is cleaner after the modification of sodium silicate, so the bonding ability between rubber power and cement hydration products is improved, which further improved the durability of concrete under the freeze-thaw cycle. The results of the nuclear magnetic resonance test showed that the pore area increased with the number of freeze-thaw cycles, and the small pores gradually evolved into large pores. The effect of sodium silicate on the modification of rubber power with different particle sizes is different. After the treatment of 2 wt% sodium silicate, the relationship between the increased rate of pore area and the number of freezing-thawing cycles is 23.8/times for the pumice lightweight aggregate concrete containing rubber power with a particle size of 20 and 35.3/times for the pumice lightweight aggregate concrete containing a particle size of 80 rubber power, respectively.

Mechanical Properties of Pumice Lightweight Aggregate Concrete Compared to Normal concrete

Mechanical Properties of Pumice Lightweight Aggregate Concrete Compared to Normal concrete

Effect of Silica Powder on the Bond between Building Stones and Pumice Concrete

The Concrete Backed Stone (CBS) masonry structures are common in many countries in the Middle East. The weak bond and heavyweight are two main problems facing such masonry structures. In this research, Pumice Lightweight Aggregate Concrete (PLWAC) containing silica powder addition is used in backing building stones. The main objective of this research is to investigate the effect of using silica powder addition on the bond strength between building stones and the PLWAC. An experimental program is conducted to investigate the bond strength by applying a direct shear load to the concrete-stone interface. The study investigated the effect of some parameters such as the silica content, the stone surface roughness, and the concrete strength on the bond between lightweight concrete and building stones. The stone roughness comprised specimens of saw-cut and grooved stones with different groove depths. Tests showed that the bond and the compressive strength of the PLWAC increased by increasing the silica content up to 15 percent, where they start to decline. The increase in bond strength corresponding to 10 and 15 percent silica content was 14 and 33 percent, respectively. Increasing the stone roughness by about 50 percent of the saw-cut surface area provided a full bond between the building stones and their backing concrete. Furthermore, the study offered a formula that estimates the bond strength and agrees well with test results. Doi: 10.28991/cej-2021-03091656 Full Text: PDF

Effect of Rock Wool Waste on Compressive Behavior of Pumice Lightweight Aggregate Concrete After Elevated Temperature Exposure

In the present study, the mechanical properties and the residual stress–strain behavior of lightweight concrete (LWC) containing pumice coarse aggregate and rock wool waste (consisting of mineral fibers) were explored prior to and following thermal loading. Key variables included the volume percentage of rock wool waste (0%, 2.5%, 5%, 7.5%, and 10%) and exposure temperature (20°C, 200°C, 400°C, and 600°C). Here, parameters playing a role in the compressive performance of LWC containing rock wool waste were examined. These parameters included the elastic modulus, compressive strength, strain at peak stress, ultimate strain, toughness index, stress–strain relationship, and failure mode. Then, several empirical relationships were proposed to predict different mechanical characteristics in terms of temperature and volume percentage of rock wool. Furthermore, the compressive strength, elastic modulus, and strain at peak stress values were compared to the prediction results of the ACI 216, EN 1994-1-2, ASCE, and CEB-FIP 1990 codes. The results demonstrated that the mechanical properties of the LWC specimens were degraded with temperature. The highest degradation in the temperature range under study occurred at 600°C, with around 50% and 80% drop in the compressive strength and elastic modulus, respectively. Furthermore, after exposure to 600°C, an increase of 2 to 2.8 folds occurred in the strain at peak stress and an increase of 2.6 to 3.4 folds occurred in the ultimate strain of the specimens relative to those at the ambient temperature. In the end, two stress–strain models were presented to capture the compressive performance of LWC including rock wool waste after elevated temperature exposure based on the empirical equations obtained for the mechanical characteristics. These models showed a relatively good correlation with the experimental data.

Experimental study on lightweight concrete using pumice aggregate

Concrete is the commonly used manufactured building material in the world, owing to its usefulness and relatively low cost. One of the disadvantages of conventional concrete is its high self-weight. This heavy self-weight of concrete will result in uneconomical structural material. To decrease the self-weight of concrete, the coarse aggregate is replaced partially by lightweight aggregate. This is known as lightweight concrete having low density, reduction of dead load and to increase thermal insulation. There are two types of lightweight aggregate - natural lightweight aggregate and artificial lightweight aggregate. One of the most commonly available natural lightweight aggregate called pumice aggregate is used as a replacement for coarse aggregate. Pumice aggregate is used because of its low density than conventional coarse aggregate, and it is easily available. Lightweight concrete is prepared by partially replacing the coarse aggregate with pumice aggregate by 50%, 80% & 100%. The conventional concrete and pumice lightweight aggregate concrete is made by using mix M 30 with Conplast SP430 admixture. The mechanical and durability properties of conventional concrete and pumice lightweight aggregate concrete are compared by conducting various destructive and non-destructive tests and favorable replacement is found.

Effects of Borıc Acid Additive to Pumice Aggregate Lightweight Concrete Properties

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 at different ratios (Ref: 0%, 2%, 4% and 6%) were investigated. For this purpose; physical (dry unit weight, water absorption and porosity) and mechanical (compressive strength, tensile splitting strength) tests on produced lightweight concrete samples by boric acid-doped pumice aggregates were performed. Furthermore, SEM images were employed in the clarification (plainly) of the microstructure of produced boric acid-doped lightweight concrete (microstructure properties). As a result of this study, it was observed that the physical properties such as porosity and water absorption values decreased while the dry unit weight increased. Moreover, an increase in compressive strength and tensile splitting strength values of produced lightweight concrete was observed. SEM images were examined and the best results were obtained from the addition of boric acid at 6% ratio. Therefore, it was determined that the use of boric acid as an additive in the production of lightweight concrete improved (significantly) the physical and mechanical properties of the produced lightweight concrete. Keywords: Boric Acid, Pumice, Lightweight Concrete, Scanning Electron Microscope (SEM). DOI: 10.7176/JSTR/6-09-01

Study on Preparation Technology and Antifreeze Performance of Slag Micropowder Pumice Lightweight Aggregate Concrete

To study the influence of the amount of slag micropowder and the mixing ratio on the frost resistance of slag micropowder pumice lightweight aggregate concrete, the LC35 concrete was prepared with S95 grade slag powder, cement, ordinary sand and pumice as raw materials.The slow-freezing method was used to study the failure mode of the sample and the change of mass and compressive strength loss rate.The results show that the mass loss rate of slag micropowder pumice lightweight aggregate concrete after freezing and thawing cycles is small, and the loss of freeze-thaw strength is high. This mainly due to the destruction of aggregate pumice. Meanwhile, because of the Micro-filling effect of slag powder, the tensile strength has an effect of increasing the compactness of the concrete, and can effectively reduce the damage caused by the freeze-thaw cycle to the concrete.

Research on the freeze-thaw cyclic test and damage model of Aeolian sand lightweight aggregate concrete

In this study, partial river sand was replaced by Aeolian sand. The Aeolian sand was added in quantities of 0%, 10%, 20%, 30%, and 40%, to replace the river sand with the same mass, and five groups of 100mm×100mm×400mm Aeolian sand pumice lightweight aggregate concrete were created for the purpose of studying the freeze-thaw damage law of the concrete. The damage variable was tested using ultrasonic pulse velocity and resonance frequency. With the aid of the SEM and AFM analyses of the freeze-thaw test from both microscopic and microcosmic perspectives, this study discussed the degradation mechanism of the freeze-thaw damage of the Aeolian sand lightweight aggregate concrete. In addition, based on the discussion, the Weibull probability and damage theories were applied in order to study the freeze-thaw damage model of the concrete. The results showed that the ultrasonic pulse velocity could also reflect the change rule of the internal structure of the lightweight aggregate concrete. The addition of the Aeolian sand both promoted and inhibited the freeze-thaw damage of the concrete. Therefore, the optimal substitution rate of the Aeolian sand set in this study was 20–30% of the river sand. Based on the freeze-thaw damage mechanism of the lightweight aggregate, this study established a damage constitutive model which was able to forecast the freeze-thaw damage of the Aeolian sand lightweight aggregate concrete.

Nuclear magnetic resonance analysis of freeze-thaw damage in natural pumice concrete

This paper presents an analysis of the damage propagation features of the pore structure of natural pumice lightweight aggregate concrete (LWC) under freeze-thaw cyclic action. After freeze-thaw cycling, we conducted nuclear magnetic resonance (NMR) tests on the concrete and acquired the porosity, distribution of transverse relaxation time T 2 , and magnetic resonance imaging (MRI) results. The results showed the following. The T 2 distribution of the LWC prior to freeze-thaw cycling presented four peaks representative of a preponderance of small pores. After 50, 100, 150, and 200 freeze-thaw cycles, the total area of the T 2 spectrum and the porosity increased significantly. The MRI presented the changing spatial distribution of pores within the LWC during freeze-thaw cycling. Ultrasonic testing technology was applied simultaneously to analyze the NMR results, which verified that the new NMR technology demonstrated high accuracy and practicability for research regarding freeze-thaw concrete damage.

The effect of blast furnace slag on the self-compactability of pumice aggregate lightweight concrete

This paper presents the results of an experimental study of the effects of blast furnace slag, different water/(cement + mineral additive) ratios and pumice aggregates on some physical and mechanical properties of self-compacting lightweight aggregate concrete. In this study, pumice was used as lightweight aggregate. Several properties of self-compacting pumice aggregate lightweight concretes, such as unit weight, flow diameter, T50 time, flow diameter after an hour, V-funnel time, and L-box tests, 7, 28, 90 and 180-day compressive strength, 28-day splitting tensile strength, dry unit weight, water absorption, thermal conductivity and ultrasonic pulse velocity tests, were conducted. For this purpose, 18 series of concrete samples were prepared in two groups. In the first group, pumice aggregate at 100% replacement of natural aggregate was used in the production of self-compacting lightweight aggregate concrete with constant w/(c + m) ratios as 0.35, 0.40, and 0.45 by weight. Furthermore, as a second group, pumice aggregate was used as a replacement of natural aggregate, at the levels of 0, 20, 40, 60, 80, and 100% by volume. Flow diameters, T50 times, paste volumes, 28-day compressive strengths, dry unit weights, thermal conductivities and ultrasonic pulse velocity of self-compacting lightweight aggregate concrete were obtained over the range of 600–770 mm, 3–9 s, 435–540 l/m 3, 10.6–65.0 MPa, 845–2278 kg/m 3, 0.363–1.694 W/mK and 2617–4770 m/s respectively, which satisfies not only the strength requirement of semi-structural lightweight concrete but also the flowing ability requirements and thermal conductivity requirements of self-compacting lightweight aggregate concrete.

Studies on Pumice Lightweight Aggregate Concrete with Quarry Dust Using Mathematical Modeling Aid of ACO Techniques

The lightweight aggregate is an aggregate that weighs less than the usual rock aggregate and the quarry dust is a rock particle used in the concrete for the experimentation. The significant intention of the proposed technique is to frame a mathematical modeling with the aid of the optimization techniques. The mathematical modeling is done by minimizing the cost and time consumed in the case of extension of the real time experiment. The proposed mathematical modeling is utilized to predict four output parameters such as compressive strength (Mpa), split tensile strength (Mpa), flexural strength (Mpa), and deflection (in mm). Here, the modeling is carried out with three different optimization techniques like genetic algorithm (GA), particle swarm optimization (PSO), and ant colony optimization (ACO) with 80% of data from experiment utilized for the training and the remaining 20% for the validation. Finally, while testing, the error value is minimized and the performance obtained in the ACO for the parameters such as compressive strength, split tensile strength, flexural strength, and deflection is 91%, 98%, 87%, and 94% of predicted values, respectively, in the mathematical modeling.

The effect of pumice powder on the self-compactability of pumice aggregate lightweight concrete

This paper presents the results of an experimental study about the effects of pumice powder, different water/(cement+mineral additive) ratios and pumice aggregates on some physical and mechanical properties of self-compacting lightweight aggregate concrete. In this study, pumice was used as lightweight aggregates. Several properties of self-compacting pumice aggregate lightweight concretes such as unit weight, flow diameter, T50 time, flow diameter after an hour, V-funnel time and L-box tests, 7, 28, 90 and 180-day compressive strength, 28-day splitting tensile strength, dry unit weight, water absorption, thermal conductivity and ultrasonic pulse velocity tests were investigated. For this purpose, 24 series of concrete samples were prepared in two groups. In the first group, pumice aggregate at the rate of 100% was used for the production of self-compacting lightweight aggregate concrete with constant w/(c+m) ratios as 0.35, 0.40 and 0.45 by weight. Furthermore as the second group, pumice aggregate was used as a replacement of natural aggregate, at the levels of 0%, 20%, 40%, 60%, 80%, and 100% by volume with fly ash and blast furnace slag mineral additives at the constant rate of 40%. The flow diameters, T50 times, paste volumes, 28-day compressive strengths, dry unit weights, thermal conductivities and ultrasonic pulse velocity of self-compacting lightweight aggregate concrete were obtained in the range of 560–800mm, 2–11s, 435–558l/m3, 10.5–65.0MPa, 840–2278kg/m3, 0.347–1.694W/mK and 2611–4770m/s respectively, which satisfies not only the strength requirement of semi-structural lightweight concrete but also the flowing ability requirements and thermal conductivity requirements of self-compacting lightweight aggregate concrete.

Properties of Air-Entrained Pumice Lightweight Aggregate Concrete and a Freezing-Resistance Forecasting Model

AbstractThis study investigates the impact of air content on the mechanical properties and resistance of natural pumice lightweight aggregate concrete to freezing. The distributional characteristics of bubbles in pumice lightweight aggregate concrete are analyzed, and a freezing-resistance forecasting model for air-entrained pumice lightweight aggregate concrete is established. Experimental results show that the distribution of bubbles in natural pumice lightweight aggregate concrete is different from that in ordinary concrete. More bubbles are found in pumice, and fewer bubbles are found in mortar. The air content of non-air-entrained pumice lightweight aggregate concrete is almost the optimal air content of ordinary concrete. However, aggregate concrete has poor resistance to freezing. The optimal air content of ordinary concrete does not apply to pumice lightweight aggregate concrete. Significantly improved freezing resistance is observed after air entrainment. However, the cube compressive strength of...

The effect of fly ash to self-compactability of pumice aggregate lightweight concrete

This paper presents the results of an experimental study on the effects of fly ash, different water/(cement + mineral additive) ratios and pumice aggregates to some physical and mechanical properties of self-compacting lightweight aggregate concrete. In this study, pumice had been used as lightweight aggregates. Several properties of self-compacting pumice aggregate lightweight concretes like the unit weight, flow diameter, T50 time, flow diameter after an hour, V-funnel time, and L-box tests, 7, 28, 90 and 180-day compressive strength, 28-day splitting tensile strength, dry unit weight, water absorption, thermal conductivity and ultrasonic pulse velocity tests were investigated. For this purpose, 18 series of concrete samples were prepared in two groups. Pumice aggregate was used as a replacement of natural aggregate, at the levels of 0, 20, 40, 60, 80, and 100% by volume. Furthermore, a second series of 100% pumice aggregate was used for the production of self-compacting lightweight aggregate concrete with constant w/(c + m) ratios as 0.35, 0.40, and 0.45 by weight. The flow diameters, T50 times, paste volumes, 28-day compressive strengths, dry unit weights and thermal conductivities of self-compacting lightweight aggregate concrete were obtained in the range of 600–800 mm, 2–8 s, 471–572 lt/m 3, 9.2–53.26 MPa, 839–2156 kg/m 3 and 0.321–1.508 W/mk, respectively, which satisfies not only the strength requirement of semi-structural lightweight concrete but also the flowing ability requirements and thermal conductivity requirements of self-compacting lightweight aggregate concrete.

Numerical analyses of tunnel collapse and slope stability assessment under different filling material loadings: a case study

To transfer the excess water from Sabzkouh River in central Iran to cities beyond the river, a mechanized tunnel is being excavated. During construction and support installation in the first 100 m, tunnel roof collapse occurred and was followed by ground settlement, so that a cavity was developed in ground surface. The cavity had to be filled in a short time before rainy season, since the water flow through cavity could extend the collapse area in both tunnel roof and ground surface. In order to fill the cavity, some filling methods with different materials consist of in situ soil, lightweight concrete, and pumice aggregate lightweight concrete (PALWC) were suggested. To analyse the load distribution and minimize the costs, a three-dimensional analysis was carried out. Tunnel support system was simulated numerically to further evaluate loading state on support system under different material loadings. Mohr-Coulomb material model was used to allow material failure. The modelling procedure was based on actual construction procedure. Firstly, in situ model was modelled without any excavation and was run to establish pre-stresses and displacement, then slope was supported, the tunnel was excavated and support was installed and finally cavity was simulated. The numerical results show that filling the cavity with soil will result in over loading on the support system and leads to instability of the slope. Other two suggested filling materials have acceptable load on support system, but PALWC was selected as the best filling material having minimum loading and guarantees slope stability.

Experimental Research on Wave-Absorbing Properties of Pumice Lightweight Aggregate Concrete

Wave-absorbing properties of ordinary concrete and pumice lightweight aggregate concrete which contained expanded perlite and carbon black were investigated in this paper. The results indicated that pumice lightweight aggregate concrete had ideal wave-absorbing properties. Within the scope of 2 ~ 18 GHz, the lowest reflectivity reached to -20 dB and better than the bandwidth of -5 dB up to 9 GHz. Meanwhile, the incorporation of proper carbon black absorber and expansion perlite can improve wave-absorbing properties.

Mechanical properties of hybrid fiber reinforced lightweight aggregate concrete made with natural pumice

The purpose of this study is to improve the ductility of pumice lightweight aggregate concrete by incorporating hybrid steel and polypropylene fibers. The changes in mechanical properties and also bulk density and workability of pumice lightweight aggregate concrete due to the addition of hybrid steel and polypropylene fibers have been studied. The properties were investigated include bulk density and workability of fresh concrete as well as compressive strength, flexural tensile strength, splitting tensile strength and toughness of hardened concrete. Nine concrete mixtures with different volume fractions of steel and polypropylene fibers were tested. A large increase in compressive and flexural ductility and energy absorption capacity due to the addition of steel fibers was observed. Polypropylene fibers, on the other hand, caused a minor change in mechanical properties of hardened concrete especially in the mixtures made with both steel and polypropylene fibers. These observations provide insight into the benefits of different fiber reinforcement systems to the mechanical performance of pumice lightweight aggregate concrete which is considered to be brittle. These results provide guidance for design of concrete materials with reduced density and enhanced ductility for different applications, including construction of high-rise, earthquake-resistant buildings.

The effects of scoria and pumice aggregates on the strengths and unit weights of lightweight concrete

This study examines the influence of aggregate types on the unit weight and strength characteristics of lightweight concretes (LWC). In this study, a scoria aggregate light weight concrete (SLWC), a pumice aggregate light weight concrete (PLWC) and three scoria-pumice commixture aggregate light weight concretes (SPLWC-I, SPLWC-II and SPLWC-III) were produced. Average dry unit weights of SLWC, SPLWC-I, SPLWC-II, SPLWC-III and PLWC mixtures were 1997, 1696, 1638, 1477, 1368, kg/m3, respectively. Compressive and flexural tensile strength and unit weight of concrete were determined at 28 days. SLWC, SPLWC-I, SPLWC-II, SPLWC-III and PLWC mixtures developed 44.1, 30.5, 27.6, 23.3, 15.8 MPa compressive strength, respectively, which satisfy the load bearing requirements. In terms of strength and unit weight requirements, all concrete produced can be classified as well as used as a LWC. Key words: Scoria, pumice, light weight concrete, unit weight, compressive strength.

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. The present study covers the use of pumice lightweight aggregate (PLA) to produce the lightweight concrete (LWC) for use in construction of load-bearing or non-load bearing elements. In this study, pumice aggregate lightweight concrete (PALWC) blocks were produced with different sizes of 8–16 mm as coarse pumice aggregate (CPA), of 4–8 mm as medium pumice aggregate (MPA) and 0–4 mm as fine pumice aggregate (FPA). According to the preliminary trial batch results, the optimum grade of aggregates was determined as 25% FPA, 25% MPA and 50% CPA by weight for the mixture compositions. The pumice aggregates were obtained from a pumice quarry in Isparta region, Turkey. 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 slump of from 2 to 4 cm. The properties of PALWC with the range of different pumice aggregate/cement ratios were evaluated by conducting comprehensive series of tests on workability, compressive strength, elasticity modulus, bulk density, wetting expansion, drying shrinkage, water absorption and thermal conductivity. Experimental test results showed the PALWC up to 25:1 A/C ratios has sufficient strength and adequate density to be accepted as load-bearing block applications. Further, higher than 25:1 A/C ratio has sufficient strength, adequate density and the thermal conductivity to be accepted as non-load bearing infill blocks for insulation purposes. PALWC showed the design flexibility and substantial cost savings by providing less dead load due to its lower density values. The properties, which increase in value and indicate the increasing quality with lower A/C ratios (high cement contents), are compressive strength, modulus of elasticity and density. Properties, which decrease in value, with higher A/C ratios are water absorption, wetting expansion, drying shrinkage and thermal conductivity. It was experienced that lowering the A/C ratios increases strength quality of PALWC. But, increase of the A/C ratio increases the thermal insulation property. Basically, the research showed that non-structural lightweight concrete can be produced by the use of fine, medium and coarse pumice aggregates mixes without using any additions or admixtures.