What are the advantages and disadvantages of lightweight concrete?

Lightweight Concrete – Advantages, Disadvantages & Uses

• Reduced Density.
• High Strength.
• Durability.
• Thermal Insulation.
• Fire Resistance.
• Soundproofing.
• Shrinkage.
• Repairability.

What are the possible advantages of using a structural lightweight concrete as compared with a normal concrete?

Lightweight concrete presents a number of benefits to the building industry–lighter weight on a building’s structural load, greater sound absorption, better shock absorption and flexibility, improved insulation values–when compared to standard concrete blends.

What is the difference between normal weight concrete and lightweight concrete?

While normal-weight concrete mixes typically weigh 145 to 155 pcf, lightweight concrete typically weighs 110 to 115 pcf. The primary difference between normal-weight concretes and lightweight concretes for structural applications is the coarse-aggregate material.

How thin can you pour lightweight concrete?

Glass Fiber Reinforced Concrete can go as thin as 3/4″ for the same kitchen countertop slabs that would need to be 1.5″ thick for precast. This instantly cuts the weight in half.

What are the advantages of semi lightweight concrete and lightweight concrete?

The main specialties of lightweight concrete are its low density and thermal conductivity. Its advantages are that there is a reduction of dead load, faster building rates in construction and lower haulage and handling costs.

What are the disadvantages of lightweight concrete?

Disadvantages of Lightweight Concrete: The only drawback of lightweight concrete is that the depth of carbonation i.e. the depth within which corrosion can occur under suitable conditions is nearly twice than that of normal concrete.

How can I make my lightweight concrete stronger?

Using less sand can make the product lighter, but it can also make the concrete weaker structurally. A simple recipe for basic lightweight concrete is to combine 8 parts sand, 8 parts cement and 8 parts perlite to 5 parts water.

What is the compressive strength of lightweight concrete?

1.4 Structural and nonstructural lightweight concrete To be considered as structural lightweight concrete (SLWC), the minimum 28-day compressive strength and maximum density are 17 MPa and 1840 kg/m3, respectively.

Is lightweight concrete fireproof?

Lightweight concrete has insulating properties, and transmits heat at a slower rate than normal weight concrete with the same thickness, and therefore generally provides increased fire resistance.

Can lightweight concrete be stained?

You need to understand that regular concrete is going to take stain very differently from a lightweight concrete. A lightweight concrete is going to take the stain lighter, it’s going to confuse you, and its never going to give you the same look as the other floor.

What is lightweight concrete called?

Foam concrete, also known as Lightweight Cellular Concrete (LCC), Low Density Cellular Concrete (LDCC), and other terms is defined as a cement-based slurry, with a minimum of 20\% (per volume) foam entrained into the plastic mortar.

Advantages of Lightweight Concrete Reduced dead load of wet concrete allows longer span to be poured un-propped. This save both labor and circle time for each floor. Reduction of dead load, faster building rates and lower haulage and handling costs.

What are the specialties of lightweight concrete?

The main specialties of lightweight concrete are its low density (300 kg / m3 to 1850 kg / m3) and thermal conductivity. Due to lightweight and high strength to mass ratio their use results in lesser steel consumption. Here we will learn about Lightweight concrete, types of foam concrete, advantages & disadvantages of lightweight concrete.

What is lightlight concrete?

Light concrete is made of lightweight aggregate, it is also called foam concrete. Since this cement consists of lightweight aggregates, it is used in coarse aggregates and sand, clay, foamy slag, clinker, and crushed stone, aggregates of organic and inorganic. This concrete saves 15 to 20 \% in the cost of construction of floors and roots.

How to make lightweight concrete?

The basic principle behind making lightweight concrete is by inducing air in the concrete. To achieve the above principle practically, there are three totally different methods: By changing conventional mineral aggregates by cellular porous aggregates. (Light-weight aggregates concrete).