In this connection replacement of cement with fly ash, fine aggregate with bottom ash, and coarse aggregate with light expanded clay aggregate (LECA) at the rates of 5%, 10%, 15%, 20%, 25%, 30%, and 35% in each mix was conducted and their compressive strength and split tensile strength of concrete were discussed for 7 days, 28, days, 56 days ...
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Expanded Clay Concrete (eC-FC) is a light-weight concrete with expanded clay aggregates, which is an important class of building materials, yet its tensile strength f t and fracture toughness K I C cannot be easily measured using small test samples due to its highly heterogeneous microstructures. This study presents a simple closed-form model …
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Experimental study on self-compacting concrete with replacement of coarse aggregate by light expanded clay aggregate. R. Vaishnava Kumar 1, N. Tejaswini 1, Y. Madhavi 1 and Jyothishya Brahma Chari Kanneganti 2. Published under licence by IOP Publishing Ltd
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The study purposes to optimize fungal mycelia Trametes hirsuta EDN 082 - light expanded clay aggregate (myco-LECA) composite for real priting batik dye wastewater treatment by using Response ...
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Lightweight expanded clay aggregate (LECA) is a manufactured aggregate with many uses in construction, such as aggregate for the lightweight concrete or like geotechnical …
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Lightweight expanded clay aggregate (LECA) is a manufactured aggregate with many uses in construction, such as aggregate for the lightweight concrete or like geotechnical fill. ... Influence of content and maximum size of light expanded clay aggregate on the fresh, strength, and durability properties of self-compacting lightweight concrete ...
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Light expanded clay aggregates (LECA) have been increasingly used as substrate material for constructed wetlands given their phosphate removal capacity, mechanical strength, hydraulic conductivity ...
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Lightweight self-compacting concrete with light expanded clay aggregate (LECA) MATEC Web of Conferences 162, 02031 (2018) Effect of GGBS and curing temperature on microstructure characteristics of lightweight geopolymer concrete MATEC Web of …
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Nahhab AH, Ketab AK (2020) Influence of content and maximum size of light expanded clay aggregate on the fresh, strength, and durability properties of self-compacting lightweight concrete reinforced with micro steel fibers. Constr Build Mater 233:117922. Article Google Scholar ...
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LECA (Light Expanded Clay Aggregate) is rounded and light grains of expanded clay which is produced in rotary kiln at temperatures about 1200 °C. LECA aggregate almost have a rough and microscopic porous surface. LECA surface and inner parts which are brown and black respectively can be seen in Fig. 1.
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Laterlite Expanded Clay is a lightweight aggregate (LWA), with insulating characteristics made by expanding special natural clays at high temperature (1200°C).Laterlite Expanded Clay is manufactured in different types and sizes, in granular or crushed form, standard (lighter and insulating applications) or structural (high mechanical strength applications).
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Light expanded clay aggregates (LECA) have been increasingly used as substrate material for constructed wetlands given their phosphate removal capacity, mechanical strength, hydraulic conductivity and their plant rooting and biofilm growth supporting structure. This review summarizes the current literature on LECA-based constructed wetlands.Removal …
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The synthesized MgO nanoparticles were used to coat the light-weight expanded clay aggregates (LECA) and as a metronidazole (MNZ) adsorbent. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and Fourier-transformed infrared (FTIR) techniques were employed to study the surface morphology and …
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Light expanded clay aggregates (LECA) have been increasingly used as substrate material for constructed wetlands given their phosphate removal capacity, mechanical …
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Uglyanitsa AV, Gilyazidinova NV, Zhikharev AA, Kargin AA (2015) Study of reinforcement corrosion in expanded clay concrete. Hous Build Res Centre 11:307–310. Google Scholar Payam S, Lee JC, Mahmudc HM, Mohammad AN (2018) A comparison study of the fresh and hardened properties of normal weight and light weight aggregate concretes.
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In this study, partially replacement of high content light expanded clay aggregate (LECA) (50, 60, 70, 80, and 90%) have been used to achieve the mechanical properties of high strength LWA …
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Lightweight expanded clay aggregate (LECA) is among the common lightweight materials that have been applied successfully in civil engineering …
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Heiza et al. [15] studied the effect of lightweight aggregate expanded clay (LECA) on the selfcompacting concrete slab and it has been found the LWSCC with low density can be produced using ...
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In the construction industry, major attention has been devoted to the use of fly ash and bottom ash as cement and fine aggregate replacements. In addition, light expanded clay …
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Photocatalytic degradation of ammonia on supported TiO2 nanoparticles was investigated. The TiO2 nanoparticles used as photocatalyst were coated on light expanded clay aggregate granules (LECA), which is a porous and light weight support. Photocatalytic reaction activity of prepared catalyst was determined by ammonia degradation from water synthetically …
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Some of the reviewed literature center attention on the use of Light Expanded Clay Aggregate (LECA) and ECA in the adsorption of phosphorous in wastewater (Table 1). This manuscript presents the results of development of ECA adsorbents, filtration of natural water for bacteria, phosphate and nitrate experiments, including adsorption experiments ...
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aggregates such as pumice, scoria, and those of volcanic origin, expanded blast-furnace slag, vermiculite, and clinker aggregates [3]. Lightweight expanded clay aggregate (LECA) is a special type of lightweight aggregate which produced from naturally available clay through a …
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This study examined the structural behavior of Lightweight concrete (LWAC) using lightweight aggregates (Light expanded clay aggregates LECA) and normal weight aggregates, aims to...
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Immobilization is a method to enhance the activity, the stability and the reusability of enzymes. This study aims to evaluate the capacity of laccase from Trametes hirsuta EDN 082 immobilized in the activated Light Expanded Clay Aggregate (LECA) for dye decolorization. The effects of enzyme loading, the dosage of immobilized laccase-LECA, and the enzyme …
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The nanostructured catalysts were immobilized on light expanded clay aggregate (LECA) granules in order to investigate the effect of a novel support on the activity of the catalysts. Morphological changes are recognizable in the SEM images. Activity tests indicated that the best catalytic performance was assigned to Cu/TiO2/LECA. After 120 min ...
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The effects of maximum size of aggregate (d max), light expanded clay coarse aggregate (LECA) content, and volume fraction of micro steel fibers (V f) on the properties of …
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In this study, light expanded clay aggregate (LECA) was used as coarse aggregate in (LWSCC) mixtures, using nano-silica as a partial replacement of cement with three percent (0.5, 0.75, and 1%) by ...
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A total of 16 mixes using expanded lightweight clay aggregate was designed with limestone powder, which was divided into three groups such as Group-1 (lime and silica fume), Group-2 (cement and ...
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In the present study, light expanded clay aggregate (LECA) and fly ash aggregate (FAA) were used as self-curing agents in self-compacting concrete (SCC). FAA and LECA were used as an internal ...
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Expanded clay pellets (Fig. 8.11), most commonly known under the brand names LECA (acronym of light expanded clay aggregate) or LIAPOR (porous lias clay), also known as Hydroton and under the non-proprietary terms fired clay pebble, grow rocks, expanded clay (pellets) or hydrocorns, are small globes of burnt and expanded clay, used in construction and …
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The construction sector's reliance on traditional cement significantly contributes to CO2 emissions, underscoring the urgent need for sustainable alternatives. This study investigates fine (0–4 mm), rounded, uncoated, porous-surfaced lightweight expanded clay aggregate (LECA)-based geopolymers, which combine the low-carbon benefits of geopolymers with LECA's …
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Lightweight expanded clay aggregate (LECA) is a lightweight granular material, which can be used as an ideal backfilling geomaterial attributed to its porous particles.
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Thus, this review paper was put together to give an idea of lightweight concrete by using different aggregates like. There are many light-weight aggregate types, such as expanded clay aggregate, pumice, coconut shell, cenosphere, ceramsite sand, cenomite aggregate, vermiculite, crushed clay bricks, and palm kernel shells, as well as their ...
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For instance, the replacement of the natural aggregates by pumice, oil palm shells, Vermiculites, aerated articles, and expanded clay aggregates have shown significant improvement of the thermal conductivity resistance. This response exhibited that addition of lightweight and porous materials as aggregates were capable of reducing the ...
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Lightweight expanded clay aggregate (LECA) is a lightweight granular material, which can be used as an ideal backfilling geomaterial attributed to its porous particles. Through X-ray tomography images, it is found that LECA particle is a porous composite particle with a strong shell and a fragile core, originating from the sintering process of LECA production. Uniaxial …
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Thermal ash aggregate decreased the density of geopolymer concrete up to 1850 kg/m³ and improved the strength up to 24.50 N/mm², on the other side using lightweight expanded clay aggregate, the ...
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In an article - Structural Concrete using Expanded Clay Aggregate: A Review - published in the Indian Journal of Science and Technology, Vol. 11 (16), Dr. R. Vijayalakshmi and Dr. S. Ramanagopal of Department of Civil Engineering, ... LWAC is a type of concrete in which Light Weight Aggregates (LWA) are utilized and it conforms to the criteria ...
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Research work is aimed on development of (LWSCC) with the use of light aggregates namely "Light expand clay aggregate (LECA)". In this present investigation, five different mixes of (LWSCC) were casted and tested to find the workability and to calculate the mechanical properties at the age of 28 days. ... Hubertova M and Hela R 2013 Durability ...
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Keywords: Durability, Expansive Clay Aggregate, Light Weight Concrete, Structural Concrete. 07 April 2020; Year: 2018, Volume: 11, Issue: 16. ... R. Vijayalakshmi and S. Ramanagopal, Structural Concrete using Expanded Clay Aggregate: A Review. Indian Journal of Science and Technology. 2018; 11(16). 1-12. More articles. Original Article ...
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