The gap between the demand and supply of natural sand remains unfilled in tandem with construction activities across the globe facing an uplift. With natural resource depletion at an alarming stage, construction aggregates pop up as part and parcel for industrial, commercial, infrastructural, and residential development projects. Further, governments’ role in backing housing projects, and mushrooming travel & tourism activities are set to amplify the adoption of construction aggregates.

Manufacturers bank on recycling processes to eliminate disposal issues, envisaging the unstable demand-supply ratio with increasing construction projects. Constructors are switching from larger and heavy construction aggregates to lightweight and durable ones, following quality, and simple transportation. With diverse applications requiring specific size or shape, manufacturers are offering customizations to the end users.

Manufacturers are leveraging the intensifying wave of innovation by employing upgraded equipment to satiate the required productivity, and quality of construction aggregates, boosting the supply capacity. However, construction activities are critically impacted during rainy and winter seasons, as such, the demand for aggregates appears to observe seasonality.

Governments across the globe are issuing a clarion call for reducing the utilization of natural resources. As such, manufacturers are turning to leverage recycled construction aggregates to achieve sustainability.  Furthermore, countries, including China, are undergoing massive infrastructural development under the 13th five-year plan, while India is on the same line under the smart cities project.

Countering Transportation Costs and Adverse Events with Lightweight Construction Aggregates

Lightweight construction aggregates are witnessing immense traction among construction firms owing to multitude of properties and benefits. Transportation expenses accounts for nearly half of the total construction aggregates cost, forcing contractors to heavily rely on their wallets. Lightweight construction aggregates exhibit greater strength as compared to their regular counterparts, yet, are lighter by about 25% to 50%.       

Lightweight construction aggregates offer significantly better fire resistance against conventional aggregates following lower thermal conductivity, and lower coefficient of thermal expansion. Properties constructed with the help of lightweight construction aggregates showcase greater resilience to exposure to the natural elements. The lower conductivity aspect stretches the time needed to attain a stable temperature, avoiding the internal temperature from altering under unstable situations conditions.

As such, lightweight construction aggregates are extensively used in top storeys of high rise construction, long span bridges, steel structures, marine structures, and screeds. In addition, the aggregates show excellent bond compatibility with the cementations matrix, and prevent micro-cracking owing to better elastic compatibility.

Recycled Construction Aggregates – An Eco-Friendly Solution

With environmental concerns climbing higher levels, manufacturers are developing recycled construction aggregates from the earlier used reprocessing materials, thereby reducing the burden on landfills. Recycled construction aggregates pose lesser threat on the surroundings, and are ideal for the progress of construction sector thriving to lower emissions.

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Gravel extraction consumes a great deal of resources, and considerably harms the environment. Further, vegetation covers need to be cleared to make space for digging for disposing extra sand and gravel. Recycling used aggregates decreases the need for continued mining operations. The process of recycling shrinks the dependence on virgin construction aggregates – a cost-efficient factor for enterprises. In addition, recycling of construction aggregates at local level dismisses the need for transportation.

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