Lewis Construction of VA

06/16/2026

Throwback to where strength, reliability and progress have always been part of the CASE Construction story.

From the machines that helped shape the past to the powerful equipment driving jobsites today, CASE has built a legacy of performance that stands the test of time.
Here’s to the machines that paved the way for progress.

Visit https://www.casece.com/en-za/africamiddleeast or contact 011 922 2000 to learn more.

06/15/2026

06/15/2026

Slump Test (Concrete Workability Test)

The Slump Test is used to measure the workability and consistency of fresh concrete.

Procedure:

1. Place the Abrams Slump Cone on a level surface.

2. Fill the cone with concrete in 3 equal layers.

3. Rod each layer 25 times using a tamping rod.

4. Level the top surface and carefully lift the cone vertically.

5. Measure how much the concrete settles (slump value).

Purpose:

Checks concrete workability before placement.

Ensures proper mixing and quality control.

Helps prevent segregation and honeycombing.

Standard Cone Size:

Height = 12 in (300 mm)

Top Diameter = 4 in (100 mm)

Bottom Diameter = 8 in (200 mm)

Interpretation:

Low Slump: Stiff concrete, less workable.

Medium Slump: Suitable for most structural works.

High Slump: Very workable, may contain excess water.

06/09/2026

Pavement (Flexible) vs Rigid Road

Flexible Pavement (Asphalt Road)

Made of bitumen and aggregate layers.

Flexible and adapts to minor ground movement.

Lower construction cost.

Requires more frequent maintenance.

Commonly used for city roads and highways.

Rigid Road (Concrete Road)

Made of cement concrete slabs.

High strength and load-carrying capacity.

Higher initial construction cost.

Longer service life with less maintenance.

Suitable for heavy traffic, industrial roads, and airport runways.

Summary: Flexible pavements are economical and quick to construct, while rigid roads are more durable and require less maintenance over the long term.

Related Hashtags:

06/03/2026

Pavement Road Construction Components & Cross Section

A pavement road is built in layers to safely transfer vehicle loads to the ground. Each layer has a specific function for strength, durability, and drainage.

Layers:

1. Wearing Course – Top asphalt layer providing a smooth and skid-resistant surface.

2. Binder Course – Connects the surface layer with lower layers and distributes loads.

3. Base Course – Main structural layer carrying traffic loads.

4. Sub-Base Course – Improves drainage and provides additional support.

5. Subgrade – Compacted natural soil forming the foundation of the pavement.

Key Features:

Carriageway: Area used by vehicles.

Shoulder: Supports pavement edges and emergency stopping.

Camber: Slight slope for quick rainwater drainage.

Berm: Side area for stability and maintenance.

05/29/2026