Structural Lightweight Concrete

Structural lightweight concrete is a concrete aggregate obtained replacing in whole or in part the ordinary aggregate with an artificial lightweight aggregate formed by expanded clay. The possibility of creating lighter structures such as beams, piles and floors, cast on site or prefabricated, is feasible by replacing the larger parts of the traditional “natural” aggregate (gravel or stones) with an “artificial” aggregate, made up of expanded clay aggregates or ECA or Lightweight Expanded Clay Aggregate (LECA).

Structural lightweight concrete made with rotary kiln produced Expanded Clay Aggregates solves weight and durability problems in buildings and exposed structures. Structural lightweight concrete has strengths comparable to normal weight concrete, yet is typically 25% to 35% lighter. Structural lightweight concrete offers design flexibility and substantial cost savings by providing less dead load, improved seismic structural response, longer spans, better fire ratings, thinner sections, decreased story height, smaller size structural members, less reinforcing steel, and lower foundations costs. Structural lightweight concrete precast elements have reduced trucking and placement costs. The excellent durability performance of structural lightweight concrete made with Expanded Clay Aggregate or expanded shale, clay or slate structural lightweight aggregate is a result of the ceramic nature of the aggregate, and its exceptional bond to and elastic compatibility with the cementitious matrix.

The closed structure of the aggregate is obtained by integrating the fine part of the material with traditional aggregate and natural sand. Furthermore, by changing the density of expanded clay and the replacement percentage of the ordinary aggregate, it is possible to obtain concrete with variable densities between the limits indicated, with strength levels starting from 15 N/mm2 up to 70 N/mm2.

This concrete can be made directly on site, mixed in concrete mixing plants or at the prefabrication plant. Pre-mixed concrete in bags are also available and are mostly used for smaller interventions, generally in restoration work.

Structural lightweight aggregate’s cellular structure provides internal curing through water entrainment which is especially beneficial for high-performance concrete, (HPC) Internal curing improves the contact zone which mitigates micro cracking.

Being among one of the lightest in the range (with a density of 1.400 ÷ 1.600 kg/m3) they are practical and safe for building reinforcement toppings in the restoration of floors and in all those applications that call for a structural casting without over-loading the existing structures.

Concrete using Expanded Clay Aggregate (EC) has better thermal properties, better fire ratings, reduced autogenous shrinkage, excellent freezing and thawing durability, improved contact zone between aggregate and cement matrix, less micro-cracking as a result of better elastic compatibility, more blast resistant, and has better shock and sound absorption, High-Performance lightweight aggregate concrete also has less cracking, improved skid resistance and is readily placed by the concrete pumping method.

Construction of Marine Structures

High performance lightweight concrete is substantially suitable construction materials to be used in the construction of marine structures. This is because offshore platforms are frequently constructed at shipyards and then floated and towed to the construction site and finally installed at specified location.

This construction process could be improved if the weights of marine structural elements are decreased. This reduction can be achieved by using high performance lightweight concrete.

Benefits

Light Expanded Clay Aggregate, LECA, ECA, Manufacturer, Supplier, India

100 % Inert

Light in Weight

Reduction of 40-50% Load

High Compressive Strength

Cylinder Compressive Strength 0.6 to 3.0 N/mm2

Micro Porous Structure

Aids Better Aeration

Non-Toxic & Eco- Friendly

100% Eco-Friendly and Sustainable

Surface Alkalinity

Neutral pH

Excellent Thermal Insulation

Thermal Conductivity 0.097 to 0.10 W/mK

Excellent Sound Insulation

Excellent Acoustic Insulation Property

Low-Coefficient of Thermal Expansion

Excellent Fire Resistance

1 to 6 hrs - 9 to 19 cm LAC 1100 kg/m³

Earthquake Resistant

Lightweight

High Resistance to Water Absorption

Saves Electricity

Excellent insulation properties allows greater energy savings

Downloads for Structural Lightweight Concrete

Precast Structures And Elements PDF

Highstrength Structural concrete

Reinforced Cement Concrete

Discover Why ECA is used for Structural Lightweight Concrete

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Rivashaa Eco Design Solutions Private Limited is one of the premium supplier of Lightweight Expanded Clay Aggregate (LECA) or Expanded Clay Aggregate (ECA) from India. The offered Lightweight Expanded Clay Aggregate from our production facility , the only manufacturer in India which offers excellent quality Expanded Clay Aggregate (ECA).

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The product is also called as Leca Haydite or ex-clay. In Europe, LECA commenced in Denmark, Germany, Holland (Netherlands), UK and Middle East. There are several manufacturers and suppliers of Lightweight expanded clay aggregate (LECA) and Expanded Clay Aggregate (ECA) in the world. Common uses of ECA are in concrete blocks, concrete slabs, geotechnical fillings, lightweight concrete, water treatment, hydroponics, aquaponics and hydroculture. ECA or LECA is a versatile material, and is utilized in an increasing number of applications. In the construction industry, it is used extensively in the production of lightweight concrete, blocks and precast or in cast structural elements (panels, partitions, bricks and light tiles). ECA used in structural backfill against foundations, retaining walls, bridge abutments. ECA can drainage the surface water and groundwater to control ground water pressure. LECA grout can be used for flooring (finishing) and roofing with thermal and sound insulation. ECA or LECA is also used in water treatment facilities for the filtration and purification of municipal wastewater and drinking water as well as in other filtering processes, including those for dealing with industrial wastewater and fish farms. ECA has uses in agriculture and landscapes. It can alter soil mechanics. It is used as a growing medium in hydroponics systems, and blended with other growing mediums such as soil and peat to improve drainage, retain water during periods of drought, insulate roots during frost and provide roots with increased oxygen levels promoting very vigorous growth. ECA can be mixed with heavy soil to improve its aeration and drainage. ECA is useful for Landscaping, Petrochemicals – Oil and Gas, Roof Top Thermal Insulation, Sound or Acoustic Insulation, Roads and Bridges, Floating Bridges on Water Bodies, Floating Solar Power Plant or Panel, Landslide Prevention, Waterproofing, Outdoor Sports Courts, Railways & Metro Rail Projects, High Strength Structural Concrete, Precast Concrete Segments, Surface or Waste Water and Affluent Treatment and Water Conservation. Rivashaa Eco Design Solutions Private Limited has already been created a niche for itself on quality Lightweight expanded clay aggregate (LECA) and Expanded Clay Aggregate (ECA) product, on time supply and guiding customers on effective usage of Expanded Clay Aggregate (ECA) or Lightweight expanded clay aggregate (LECA) for best results. Expanded Clay Aggregate are preferred light weight aggregate used in place of conventional Charcoal, Coco peat, Diatomaceous earth, Growstones, Lavarock, Mineral wool, Perlite, Pumice, Rice hulls, Sand, Vermiculite and Wood fiber, Construction, Ceramic,Lightweight High Strength Structural Concrete, Designer Concrete applications, Acoustic Panels, Cladding Stones, Cladding Panels, Coatings, Paints, Precast and Prefab Industries, Thermal and Sound Insulation Concrete and Mortars, Landscaping, Agriculture, Horticulture, Construction Blocks and Tiles, Plastering, PCC, Waste Water treatment, Petrochemicals Oil and Gas Bedding Insulations, Geotechnical applications including lightweight backfill, Sunken Fill and Road/ Embankment Construction. The versatile application of Expanded Clay Aggregate in Geotechnical field includes construction of embankments/fills, Lightened embankments, Bridges abutments and alignment ramps, Embankments on landfill, Embankments on potentially unstable slopes, Containment structures ( Retaining Walls, Piers and waterfronts ), Foundations of buildings, Fill for underground structures, Buried tanks and pipes, Fill for below-ground cavities, water management including infiltration reservoirs, drainage and green roofs, Road construction, Landscaping, Landing beds and roofs for rock fall protection, lightweight structural and nonstructural concrete and the like.ECA is a boon to Construction, Infrastructure and Architect World. Application of Expanded Clay Aggregate or ECA touches entire gamut of Construction and Infrastructure including Roads & Bridges, Oil & Gas, Civil engineering, Acoustic and Sound transfer coefficient components and products. ECA today is a preferred aggregate for all corporate, EPC project consultants, Procurement professionals, Contractors & Builders, OEMs, Site Engineers, Architects, Process industries, Engineering & Construction companies and is also showcases the advantages of India to a global audience, while putting India in touch with global requirements in all fields.

One of the materials with the greatest compressive strength among lightweight aggregates is Expanded Clay Aggregates

Lightweight Expanded Clay Aggregates shows a better thermal performance than normal concrete