Lightweight Geopolymer Concrete Research Articles

Investigating the fresh and mechanical properties of wood sawdust-modified lightweight geopolymer concrete

Geopolymer concrete has developed as a potential alternative to ordinary Portland cement-based concrete, wherein various industrial by-products have been converted as beneficial spin-offs. Apart from appropriate compressive strength in the construction sector worldwide, the durability, sound absorption, thermal conductivity, and weight of concrete are also major concerns. Lightweight geopolymer concretes have gained attention because of their superior strength, durability, lower environmental impact, and sustainable characteristics. In this view, the current study examined the feasibility of using sawdust as a natural fine and coarse aggregate substitution in fly ash (FA)-granulated blast furnace slag (GBFS) based geopolymer concrete. Four mixes with a different percentage of sawdust (25, 50, 75, and 100) substituting natural aggregate were designed to examine the effects of sawdust on fresh and hardened features of geopolymer concrete compared to those conventional FA-GBFS-based geopolymer concrete with natural aggregate. Sodium silicate (NS) and sodium hydroxide (NH) (with NS/NH ratio of 0.75) were utilized to dissolve the alumina silicate from FA and GBFS. Informational models were developed using an experimental dataset to estimate the compressive strength of geopolymer concrete mix designs. Besides, using the weight of the developed network, a global sensitivity (GS) analysis was developed to identify the sensitivity of compressive strength to the waste sawdust content. Test results confirmed that by substituting natural aggregate with 100% sawdust, there was around a 35% decrease in compressive strength. Nevertheless, the sound absorption coefficient was increased by an average of 38% in frequencies range between 1800 and 2500 HZ, and thermal conductivity decreased by around 4.5 times once the natural aggregate was substituted by 100% sawdust.

Studies on Lightweight Geopolymer Concrete

The studies on Lightweight Geopolymer concrete (LGC) are leading-edge in the development of sustainable and eco-friendly concrete. Attempts were being made to develop LGC by various methods of production. This paper reviews about previously published research work on lightweight geopolymer concrete and the observations to the material binders - an alternate to the Ordinary Portland Cement (OPC) by the utilization of industrial by-products, alkaline activator solution, foaming agents, chemical expansive agents, lightweight aggregate, production methods, and their physical and mechanical properties. The main focus is to investigate pore size formation, density, compressive strength and curing conditions. From the review it is found that the stabilization of foam and the control of efflorescence are the two challenging problems faced by the industry for the mass production of lightweight geopolymer foam concrete. Furthermore, topics for future work in this field were suggested.

Experimental investigation on mechanical behavior of geopolymer light weight concrete

Experimental investigation on mechanical behavior of geopolymer light weight concrete

Physical characteristics and mechanical properties of a sustainable lightweight geopolymer based self-compacting concrete with expanded clay aggregates

Geopolymer Concrete (GPC) is a unique and sustainable building material that has the potential to be transformed into a self-compacted lightweight composite for industrial applications. This paper investigates the sustainability of self-compactable lightweight geopolymer concrete (SCLGC) made from Expanded Clay Aggregate (ECA) to further explore this front. In this study, the physical properties of SCLGC, such as slump flow test, T500 test, V-funnel, and J-ring tests, are examined. Furthermore, the density, Ultrasonic Pulse Velocity (UPV), compressive strength, splitting tensile strength, and impact resistance are also tested to evaluate the mechanical properties of SCLGC mix with various concentrations of Sodium Hydroxide (SH) cured under different curing regimes. The aforenoted properties are examined following the American, Indian and European guidelines. In addition, microstructural analysis is conducted to assess the compactness and internal structure of SCLGC blends with varying SH concentrations cured under different curing regimes. Finally, the sustainability aspects of GPC and SCLGC mixes are analyzed through the Life Cycle Assessment (LCA) and Environmental Impact Assessment (EIA) to evaluate the energy requirement and CO2 emission and cost. The Sustainability analysis was performed to evaluate the energy requirement and CO2 emission of SCLGC in the production of 1 m3 concrete based on the previous literatures. The significance of the proposed research work emphasizes the utilization of ECA as an aggregate material for the development of SCLGC. The cost, carbon and energy efficiency of the SCLGC's mixes were estimated. Mix with ECA requires higher energy demand and emits high CO2 in the open atmosphere. Based on the present analysis it can be concluded that an increase in the concentration of activator solution increases the energy demand and emits more amount of CO2. The inference from the present study reveals ECA can be employed for the production of SCLGC with the replacement percentage not exceeding 50%.

Hybrid effect of carbon nanotubes and basalt fibers on mechanical, durability, and microstructure properties of lightweight geopolymer concretes

In this research, a combination of basalt fibers (BFs) and carbon nanotubes (CNTs) were used to improve the engineering attributes of lightweight geopolymer concrete (LWGC). A combination of ground granulated blast furnace slag (GGBFS) and CNTs was utilized as the binder. The experiments consisted of slump, equilibrium density, compressive and splitting tensile strengths, ultrasonic pulse velocity, water absorption, water penetration depth, electrical resistivity, fourier-transform infrared spectroscopy, energy dispersive X-ray microanalysis, and scanning electron microscope. Also, reinforced LWGC beams containing different percentages of BFs and CNTs were fabricated and subjected to four-point loading. The experimental outcomes demonstrated that CNTs could be used as a replacement for a part of GGBFS to obtain structural LWGC with suitable mechanical and durability attributes. The combined use of CNTs and BFs increases the compressive and splitting tensile strength by 32.2% and 43.7%, respectively. Due to greater participation in the geopolymerization process and the formation of hydrated gels, mixes containing CNTs fill the voids and form a dense and cohesive structure. Moreover, the presence of BFs in the binder texture of LWGC strengthens the bond between the binder and the aggregates and prevents the development of capillary cracks. It was observed that the reinforced LWGC beam containing BFs and CNTs had higher flexural strength and better ductile performance than the control specimen.

Effect of high temperatures on the properties of lightweight geopolymer concrete based fly ash and glass powder mixtures

Given the large manufacturing and consumption of concrete globally, there has been widespread speculation that it is a significant source of greenhouse gas emissions. Consequently, scientists are looking for sustainable and beneficial solutions to the environment. The influence of adding expanded clays (Leca) and crushed recycled bricks clay lightweight aggregates (RBA) on the fly ash and glass powder-based geopolymer concrete were investigated at ambient and high temperatures. High temperature influences the significant characteristics of mortar and lightweight aggregate geopolymer concrete. Low calcium fly ash was utilized as a binder in the concrete paste with a 10% replacement rate of Glass Powder. The concrete specimens were heated to 200, 400, 550, and 800 °C at a 7 °C/min rate for 60 min. Lower coarse aggregate strength is a contributing factor to concrete compressive strength reductions. The influences of high temperatures on geopolymer concrete were studied in terms of mass loss, cracking, water absorption, and microstructure. The research outcomes show that the geopolymer concrete suffered damage and dehydration at a heating temperature of 550 °C and above. Acceptable correlation between the temperature degree and Ultrasonic Pulse Velocity UPV with the compressive strength of the lightweight concrete. The test results showed the residual compressive strength 110.2%, 92.9%, 71.9%, and 55.6% as well as 109.2%, 91.5%, 79.6%, and 52.6% in addition to the density reduced 0.17%, 2.56%, 7.29%, and 12.18%, and 0.74%, 3.97%, 6.31%, and 13.25% in 200,400,550, and 800 °C for Leca and RBA type respectively. The equations showed acceptable results with experimental data. The impact of replacing waste glass powder with fly ash on the development of microstructures and gels was also investigated.

The Durability of Lightweight Geopolymer Concrete (LGC) on Chloride Resistance

Lightweight geopolymer concrete is an innovative concrete from a combination of environmental-friendly geopolymer concrete and lightweight concrete which has a density of less than 2,400 kg/m³. This concrete does not use Ordinary Portland Cement (OPC) but uses type F fly ash which has the same main composition as OPC namely silica and aluminum. Reducing the use of OPC aims to reduce the production of CO₂ gas emissions which are the main contributors to global warming. This study aims to provide the information needed to develop lightweight geopolymer concrete to reduce carbon emissions and create environmental-friendly concrete materials. The constituent materials of lightweight geopolymer concrete include type F fly ash as precursors, Na₂SiO₃ and NaOH 14 M as activators, fine aggregates in the form of sand as concrete fillers, superplasticizers, and foam. The use of foam helps in reducing the density of lightweight geopolymer concrete. The ratio used in this study is 1:2 for activators and precursors, 1:2 for precursors and fine aggregates, 2.5:1 for Na₂SiO₃ and 14 M NaOH, and 1:40 for foam agents and water with a percentage of foam that is 50% of test object volume. The amount of plasticizer used is 3% of the weight of the precursor. Treatment of the lightweight geopolymer concrete using an oven with a temperature of 60°C for 24 hours and then the specimen coated with plastic wrap for 28 days to achieve maximum compressive strength. Curing for 28 days, the specimen has a compressive strength of 27.9 MPa with a specific gravity of 1,702.5 kg/m³. This research focuses on the durability of lightweight geopolymer concrete using 5% HCl acid solution under different conditions, which are left at room temperature, fully immersed in 5% HCl acid solution, and cyclic conditions. Tests were carried out on days 28 and 56 with observations of changes in compressive strength, density, visual conditions, Scanning Electron Microscope, and XRD. The results showed that acid solutions' long duration and soaking conditions, especially hydrochloric acid, affect lightweight geopolymer concrete.

Study on the Light Weight Geopolymer Concrete Made of Recycled Aggregates from Lightweight Blocks

Abstract: This study studied the properties of lightweight geopolymer concrete that contained recycled lightweight block aggregate. The recovered blocks are classified as coarse aggregates after being crushed.To reduce greenhouse gas emissions, geopolymers have the potential to be used to create new, environmentally beneficial materials. A new class of building materials called geopolymer concrete (GPC) has a replacement for regular Portland cement concrete (OPCC) and are capable of revolution in the construction sector. The impact of On the strength characteristics, alkaline activators have been investigated. Used fly ash was obtained for this study from a nearby thermal power plant. Samples were produced from low-calcium fly ash through activation with a combination of sodium silicate solution and sodium hydroxide. Fly ash was added to the concrete with a ratio of 0.5. Using a mix proportion and 5,10,15 Molar of sodium hydroxide solution, geopolymer specimens were cast. The samples underwent compression testing. test with ambient temperatures for curing. From the analysis ofLiterature suggests that the combination of the aforementioned ingredients is healing. FromAccording to a review of the literature, the amalgamation of the aforementioned elementshas a favorable effect on the strength properties of geopolymer concrete. Since fly ash is viewed as a waste product, geopolymer concrete made from low-calcium fly ash costs less than Portland cement concrete as a result. Lowcalcium fly ash-based geopolymer concrete has good compressive strength, very little drying shrinkage and minimum creep, great resistance to sulphate attack, and superior acid resistance.

Behavior of bond-slip relationship of lightweight and normal weight geopolymer with various FRP sheets using end-groove anchorage

In this study, the effect of using an end-groove anchorage system (EGA) on the bond-slip behavior between fiber-reinforced polymer (FRP) sheets and both normal weight geopolymer (NWG) and lightweight geopolymer (LWG) concrete was investigated by considering the effects of different types of FRP sheets (CFRP, BFRP, and GFRP), FRP bonding lengths of 50 and 100 mm, FRP bonding widths of 50 and 75 mm, and with and without an EGA system. A total of 96 specimens of NWG and LWG concrete were cast, bonded with FRP sheetsand tested under double-shear tension. The results of employing EGA revealed that the bond-slip behavior of NWG specimens differed from that of LWG specimens. Using the EGA system significantly enhanced the bond force by an average of 16 % and 18 % for NWG and LWG, respectively. However, the ultimate slippage of NWG specimens was reduced by as high as 60 % as a result of using the EGA system, but it contributed to increasing the ultimate slippage remarkably by as high as 73 % for LWG concrete specimens. It's worth noting that the bond-slip behavior of CFRP sheet outperformed all other types of FRP sheets for both NWG and LWG concrete. The type of geopolymer concrete, the kind of FRP sheets, and the EGA process all influence specimen failure modes. The EGA system was more favorable for the bond failure of CFRP sheet and NWG concrete specimens, resulting in the avoidance of sudden debonding of CFRP composite and block contacts. A bond-slip model was proposed in this study to predict specimen bond force and slippage. The model was well fitted to the experimental data and appeared to have potential as a practical application which is the first and only model in the literature in this field.

Geopolymer Concrete with Lightweight Artificial Aggregates.

This article presents the physical and mechanical properties of geopolymer concrete with lightweight artificial aggregate. A research experiment where the influence of fly ash–slag mix (FA-S), as part of a pozzolanic additive, on the properties of geopolymers was carried out and the most favorable molar concentration of sodium hydroxide solution was determined. The values of three variables of the examined properties of the geopolymer lightweight concrete (GLC) were adopted: X1—the content of the pozzolanic additives with fly ash + flay ash–slag (FA + FA-S) mix: 200, 400 and 600 kg/m3; X2—the total amount of FA-S in the pozzolanic additives: 0, 50 and 100%; X3—the molarity of the activator NaOH: (8, 10 and 12 M). In order to increase the adhesion of the lightweight artificial aggregate to the geopolymer matrix, the impregnation of the NaOH solution was used. Based on the obtained results for the GLC’s compressive strength after 28 days, water absorption, dry and saturated density and thermal conductivity index, it was found that the most favorable parameters were obtained with 400 kg/m3 of pozzolanic additives (with 50% FA-S and 50% FA) and 10 NaOH molarity. Changes in the activator’s concentration from 8 to 10 M improved the compressive strength by 54% (for a pozzolana content of 200 kg/m3) and by 26% (for a pozzolana content of 600 kg/m3). The increase in the content of pozzolanic additives from 200 to 400 kg/m3 resulted in a decrease in water absorption from 23% to 18%. The highest conductivity coefficient, equal to 0.463 W/m·K, was determined, where the largest amount of pozzolanic additives and the least lightweight aggregate were added. The structural tests used scanning electron microscopy analysis, and the beneficial effect of impregnating the artificial aggregate with NaOH solution was proved. It resulted in a compact interfacial transition zone (ITZ) between the lightweight aggregate and the geopolymer matrix because of the chemical composition (e.g., silica amount), the silica content and the alkali presoaking process.

The effect of scoria, perlite and crumb rubber aggregates on the fresh and mechanical properties of geopolymer concrete

To broaden the practical applications of the geopolymer concrete (GC) at the same large-scale structural level as the conventional concrete (CC), careful assessment of the fresh and mechanical performance of the new concrete technologies based on the GC binder are essential. Lightweight concrete (LWC) is of significant importance for the seismic-resistant lightweight structures, while rubberised concrete is an innovative structural material to tackle the issues associated with the accumulation of the scrap tires in the environment. Current research makes attempt to develop and characterise the rubberised geopolymer concrete (RGC) using 10-mm recycled crumb rubber (CR) aggregates as substitution for the natural coarse aggregates by 5, 10, 15, and 20% replacement. Lightweight geopolymer concrete (LWGC) utilising lightweight scoria and perlite aggregates as replacement for the natural coarse and fine aggregates, respectively, by 25, 50, 75, and 100% proportions were prepared as well. Thereafter, the RGCs and LWGCs were subjected to the fresh and mechanical properties analysis after 3, 7, and 28 days of ambient-curing. For the RGCs, the obtained results denoted no deterioration of the flowability, improved 7-, and 28-day compressive, tensile, and flexural strengths, and enhanced strain-hardening behaviour comparing to the plain GC. For the LWGCs, the obtained results revealed severe segregation for the mixes containing 25% perlite or more, and high risk of segregation for the mixes containing more than 75% scoria. The results obtained for the mechanical properties of the LWGCs suggested that the scoria content in the range of 25–75% improved the fresh and mechanical properties of LWGC compared with GC. In addition, the RGCs represented superior load-bearing capability rather than the LWGCs.

Effect of air agent on mechanical properties and microstructure of lightweight geopolymer concrete under high temperature

Recent innovations in the field of concrete have contributed to the development of lightweight geopolymer concrete (LGC), which can be produced by adding an air agent. This study investigates the possibility of producing an air agent from the powder slag of ferrosilicon (FSS), an industrial waste. A class F fly ash (FA) was used for GC synthesis, and aluminium powder (AP) and FSS were added as air agents for LGC synthesis. The performance of FSS and AP as an air agents was compared by studying the properties of LGC produced under the same conditions. Air agents with 0%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5% and 1.0% mass of FA were adopted to produce LGC. Thirteen mixtures were prepared to evaluate unit weight, the fresh and mechanical properties and the microstructure of LGC with PA and FSS air agents. Influence of high temperature of 200–800 °C for 2hrs on LGC was also investigated. The results show the possibility of using FSS waste powder as an air agent in LGC production. In terms of workability and unit weight, FSS was better compared to AP at the same percentage addition. The slump flow and unit weight, were 548 mm, 1830 kg/m3, and 569 mm and 1740 kg/m3, while compressive strength was 24.7 and 21.8 MPa for LGC containing 1% AP and 1% FSS, respectively.

Evaluation of mix ratios of light weight concrete using geopolymer as binder

Concrete, an old material which is changing its nature rapidly based on supplementary materials used in it. Geopolymer concrete is a sustainable material developed by replacing 100% flyash of cement. To activate the stable flyash particles in concrete, alkaline solutions are added in place of water. Foam is one of the additional materials added in concrete to obtain light weight. These additional materials will affect the mix proportions directly. Light weight Geopolymer Concrete (LWGC) is the combination of two techniques which doesn’t have similarity in single prospect, so the mix design methods for nominal concrete and light weight concrete alone will not be useful to develop LWGC. This paper will discuss the mix proportions of light weight geopolymer concrete with different materials and different variables viz: foam volume, mass ratio, Solution to binder ratio and density based on available codes of practices and literature. The results indicated 0.6 solution to binder ratio is suitable for 8 M LWGC with good workability and compressive strength.

Strength performance of alkali activated structural lightweight geopolymer concrete exposed to acid

This study investigates the performance of structural lightweight geopolymer concrete (SLWGC) exposed to chemical attack. The objective of this study is validation the ability of using light weight geopolymer concrete for structural purpose under hard conditions. The alkali activator was produced using sodium silicate, sodium hydroxide and water. Flay ash and slage as waste materials were replaced by 90% of ordinary Portland cement to produce the geopolymer concrete. Also, ordinary cement concrete produced to comparison. Three types of lightweight aggregate were used instead of normal aggregate represented by pumice stone, expanded clay and construction waste clay brick to produce SLWGC. The unit weight of produced SLWGC were in the range (1800–2100) kg/m3. Normal weight geopolymer concrete and SLWGC were produced simultaneously to compare their performance each with other. The geopolymer concrete mixes treated by heat curing at 65 °C for 24 h after removing the molds. The specimens of all mixes exposed to sulfuric acid with concentration 5% and 10% for 8 weeks. The investigated mechanical properties represented by compressive strength and flexural tensile strength. The results indicate that the geopolymer concrete exhibit better resistance for acid attack compared to OPC concrete where the strength deterioration for SLWGC lower than ORC light weight concrete after exposed to acid, crushed clay bricks exhibit superior mechanical and durability performance compared to other LWA. Finally, the results proved the ability of producing light weight geopolymer concert for structural purposed with acceptable performance of strength and durability under hard chemical conditions.

Effect of elevated temperatures on mechanical properties of lightweight geopolymer concrete

This study aims to examine the effect of high temperatures on lightweight geopolymer concrete (LWGC) and lightweight ordinary concrete (LWOC) made of natural pumice and lightweight expanded clay aggregate (LECA) with the addition of trapped air. To this end, a geopolymer concrete matrix has been synthesized by the alkali-activation of fly ash (FA) and granulated blast furnace slag (GBFS). The geopolymer concrete samples were cured for 24 h at a temperature of 80 °C. To study the properties of fresh concrete, slump and slump flow tests and unit weight were applied. The mechanical properties were also measured by the compressive strength, splitting tensile, flexural strength, and elastic modulus tests. High temperatures of 100 °C, 200 °C, 300 °C, 400 °C, 500 °C, 600 °C, 700 °C, and 800 °C were applied on the geopolymer concrete samples to obtain the residual compressive strength. In general, pumice and LECA can be used as an alternative to the dolomite aggregate to produce LWGC and LWOC. The mixture F-50D50P-A achieved the lowest of unit weight of 1660 kg/m, a slump flow of 555 mm, and compressive strength of 32.9 MPa at 91-days. Lightweight geopolymer concrete containing 50 % fly ash and 50 % GBSF achieved the best compressive strength test results. The results showed a similarity in the behaviour of LWGC with LWOC under the influence of all the variables applied in this study.

Engineering performance of reinforced lightweight geopolymer concrete beams produced by ambient curing

AbstractThe use of lightweight concrete can provide specific advantages that are favoring for mitigating seismic risk in building design. On the other hand, a significant reduction of carbon footprint could be possible through the use of geopolymer concrete. However, geopolymer concrete is mostly assessed through small specimens without reinforcement elements. This paper aims to couple the advantage of lightweight mixtures and ambient‐cured geopolymerization in reinforced beams. To do this, engineering performance of reinforced lightweight geopolymer concrete was extensively investigated with different aspects. In mixtures, pumice and volcanic tuff aggregates were used with an appropriate gradation. Flexural strength, deflection capacities, initial stiffness, ductility, and energy dissipation capacity of reinforced geopolymer beams were investigated with the proposed configuration. Compressive strength and unit weight of the developed mixtures were also evaluated to meet design requirements for lightweight concrete. Results indicated that certain engineering properties (energy dissipation capacity and initial stiffness) of developed lightweight geopolymer concrete were considerably comparable with lightweight Portland cement‐based concrete. Although compressive strength and unit weight of the developed geopolymer mixtures were satisfying, microstructural analysis indicated a weak bonding behavior between paste and lightweight aggregates.

Flexural strength of Lightweight geopolymer concrete using sisal fibres

Lightweight concrete is usually chosen for structural purpose where its use will lead to a lower overall cost of a structure than normal weight concrete by reducing its dead weight. This weight will make it an uneconomical structural material. Attempts have been made in the past to reduce the self-weight of concrete to increase the efficiency of concrete as a structural material. In this research, bamboo sticks are used in the form of coarse aggregate at different proportions to reduce the self-weight of concrete. Also, naturally available fibre named sisal fibre is into the reinforcement to study its properties. The influence of sisal fibres and bamboo sticks on the strength of light weight geopolymer concrete is taken as the main objective of this experimental study. In recent years, a great deal of interest has been created worldwide on the potential applications of light weight concrete and utilization of natural fibres reinforced cement-based composites. In this work, it is also aimed to investigate the strength properties of concrete by casting light weight geopolymer concrete by replacing bamboo aggregates with 10%, 20% and 30% of coarse aggregate. Also, Sisal fibres are added at different proportions as 0.25%, 0.5%, 0.75% and 1.0% by volume of concrete respectively. Evaluation of flexural bending strength for M25 geopolymer concrete specimens was done. Totally 9 number of 500×100×100 mm flexural members are cast and tested under M25 grade of concrete. The 12 M NaOH, ratio of NaOH:Na2SiO3 as 2.5 and ratio of flyash to alkaline activator solution as 0.6 are considered as various parameters for designing the mix of geopolymer concrete. Ambient curing condition is applied for evaluating strength properties. The flexure strength was tested with replacement of coarse aggregate with bamboo sticks and by adding different percentage of sisal fibres. The test results indicated that the sisal fibres were effective in improving the strength of concrete.

English

English

Utilization of expanded clay aggregates in sustainable lightweight geopolymer concrete

The lightweight sustainable construction composites prepared with the waste materials are enormously utilized for the construction activities. The geopolymer concrete (GPC) has emerged as the sustainable construction composite and holds potential to get modified as the lightweight composite. To confirm the sustainability attributes and feasibility of the lightweight material for the strength adequacy, the lightweight geopolymer concrete (LWGPC) was prepared with the expanded clay aggregates (ECA) is evaluated for density, compressive strength, splitting tensile strength, impact resistance and the ultrasonic pulse velocity response. The sustainability attributes of LWGPC were evaluated by the environment impact assessment (EIA). The objective was to ensure the feasibility of the LWGPC for the lightweight construction applications and the impacts of the composite on the environment. The results showed significant reduction of the density of the composite due to the ECA (0–100% by weight of the natural aggregates). With the replacement of the natural aggregates up to 50% the composite performed fairly well for all the test conditions. The EIA explorations of LWGPC over the GPC showed clear advantages of energy efficiency, reduced CO2 emission on manufacturing and adequate strength properties of the new composite.

Lightweight Geopolymer Concrete Panels for a wall in high-rise buildings: Technical- Economical- Environmental efficiency

Brick and cement are two of the most used materials for a building wall, but the traditional brick and clinker production causes several environmental and human health impacts. Besides the demand of light-weight materials for the high-rise buildings is increasing more and more, these have encouraged the development of the new efficient materials to alternative the conventional brick. The objective of this study is to comparative technical and cost analysis as well as an environmental assessment of the wall structure used Lightweight Geopolymer Concrete Panels (LGCP). The results have revealed that the LGCP exhibits some superior engineering properties like as very low density and heat transfer coefficient, high strength,… The utilization of industrial wastes (fly ash-FA, Ground Granulated Blast furnace Slag-GGBS) as raw materials in LGCP production leads to reduce over 48% CO2 emission, and up to 17 times energy consumption, but still cheaper 42% construction cost to conventional bricks. The LGCP application is an important step to contribute better environmentally-friendly in particular and reach a sustainable development of the construction industry in general.