Arto Precast Concrete – Blog

What are Hollow Core Slabs and why are they used?

Hollow core slabs are prestressed precast concrete elements produced on long-line steel casting pallets. Prestressed hollow core slabs are used in large open spaces and for concrete frameworks that support heavy weight loads. When you use hollow core slabs in the process, you will save both material and labour
Hollow core slabs make it possible to build concrete frameworks that would be impossible to build with other systems. Structures with prestressed hollow core slabs are an excellent choice for industrial, residential, and civil engineering projects. The prestressed slabs have lengthwise hollow cores in the bottom section to reduce the weight of the concrete framework, which means they do not require transversal reinforcement. When you use prestressed hollow core slabs and beams, you will save money on beams, columns, material, and, most importantly, labour.

The benefits of hollow-core slabs are listed below:

Erection Speed

Hollow core slabs can be installed quickly and safely on-site in a variety of weather conditions. The number of workers required on-site is kept to a minimum, and the immediate working platform is provided. These advantages allow for much faster flooring completion and building erection, increasing profits for the contractor.

Reduced Material Use

Hollow core slabs are prestressed elements that allow for shallower elements, resulting in less steel and concrete used in the construction. It is also possible to reduce the size of supporting frame elements, columns, and beams.

Efficiency in Structure

Hollow-core structures provide a versatile solution in both steel and concrete structures. As a result, they are suitable for a wide range of applications, including housing, commercial and industrial buildings, parking lots, and sports stadiums.

Better Fit and Finish

Prestressed hollow core is made with high-quality raw materials, such as high-strength concrete and low-relaxation steel wire/strand, and is subjected to strict quality assurance procedures and controls that meet national and international standards. As a result, the slabs’ quality is preserved.

Insulation against noise

Prestressed hollow core provides superior sound insulation, which is important in residential buildings.

Thermal Effectiveness

Hollow core slabs have excellent thermal properties, which help to reduce energy consumption in structure heating and cooling.

Sustainability and Scalability

Hollow core slabs are extremely durable construction products with a long lifespan due to their resistance to corrosion and cracking. Because it is manufactured in a controlled factory environment, it also allows for the reduction of waste, noise, and emissions throughout the construction process.