High Density Concrete: Materials, Mix Design, Production and Applications

by
High Density Concrete

Concrete is normally selected for its strength, durability and versatility. However, some applications require another important property: high mass within a limited volume. This is where high density concrete, also known as heavyweight concrete, becomes useful. By replacing conventional aggregates with heavier natural or manufactured materials, concrete with a significantly higher density can be produced. … Read more

ASTM C39/C39M – Compressive Strength Test of Cylindrical Specimens – A Quick Guide

by
Types of fracture patterns of cylindrical specimen as per ASTM C39

The compressive strength test is one of the most important quality-control tests for concrete. ASTM C39/C39M covers the determination of compressive strength of molded concrete cylinders and drilled cores having a density greater than 800 kg/m³. The test involves applying a continuously increasing axial compressive load until failure and calculating the strength from the maximum … Read more

How to Hire a New Home Construction Contractor: 10 Steps to Choose the Right One

by
How to Hire A New Home Construction Contractor

Building a new home is one of the biggest financial decisions most people will ever make. While the design, location, and finishes are important, the success of the project often depends on one critical decision: choosing the right new home construction contractor. The wrong contractor can lead to delays, cost overruns, poor workmanship, and stressful … Read more

IS 16720 Fly Ash Bricks – A Quick Guide

by

Fly Ash Bricks – Quality Requirements As per IS 16720 Fly ash bricks, technically referred to in IS 16720:2018 as Pulverized Fuel Ash-Cement Bricks, are masonry units manufactured primarily using pulverized fuel ash (fly ash), cement, aggregates and water. The use of fly ash in bricks provides an effective way of utilizing a thermal power … Read more

Expansion Joint in Concrete – What, Why & How

by
Expansion Joint in Concrete What Why and How

Concrete may look rigid and immovable, but a concrete structure is continuously subjected to dimensional changes throughout its service life. Changes in temperature, drying shrinkage, creep, moisture and other environmental effects can cause concrete to expand, contract or deform. If these movements are restrained, stresses can develop within the concrete. When the induced tensile stress … Read more

Choosing the Right Lubricants for Different Industrial Machinery

by
Choosing right lubricant for different machineries

Selecting the most appropriate lubricant is an important part of keeping industrial equipment operating reliably. The lubricants available from RS encompass products designed with a broad range of applications, machinery types, and operating environments in mind. Of course, there is no single lubricant that suits every conceivable industrial application. So, organisations cannot depend on “just … Read more

Bend and Rebend Test for Steel Rebar (IS 1786 & IS 1599)

by
Bend and Rebend Test on Steel Rebar as per IS 1786 and IS 1599

Steel is considered to be one of the vital construction materials. The process of construction involves the bending of steel to a particular form. Consequently, it is important to check the ductility of the steel, which is the ability to deform under applied pressure. Bend and Rebend Test This test procedure is used to check … Read more

How to Correlate Rebound Number with Concrete Strength

by
How to establish relationship between rebound number and concrete strength

Establishing a reliable relationship between rebound hammer numbers and the compressive strength of concrete is a crucial aspect of quality control in construction projects. This correlation serves as a valuable tool for rapid, non-destructive assessment of concrete strength in both existing and under-construction structures. The rebound hammer test offers a quick and cost-effective method to … Read more

Sustainability of Concrete: How Can We Make Concrete More Sustainable?

by
Sustainability of Concrete How to make concrete more sustainable

Sustainability of Concrete Concrete is everywhere. From foundations and retaining walls to bridges, dams, high-rise buildings, industrial plants and roads, modern infrastructure would be almost impossible to imagine without it. But concrete has a sustainability problem. The issue is not really concrete itself. The biggest environmental impact comes from the cement used to make concrete—particularly … Read more

How to Improve Construction Productivity by 30%: A Guide by CIB

by
How to improve construction productivity by 30 percent

Introduction to the 30% Productivity Target For many years, the construction industry has faced a major challenge. Projects often run over budget. They also take longer than planned. In 1994, Sir Michael Latham published a famous report called Constructing the Team. In this report, he suggested a bold goal. He stated that the construction industry … Read more