Ready Mix Concrete

Ready-mix Concrete

Ready-mix concrete is prepared at a concrete manufacturing facility and then transported to the construction site in mixer trucks. During transit, the concrete is continuously mixed to prevent hardening, ensuring it arrives in a workable state.

Concrete Overview

Concrete is a composite material composed of sand, gravel, and other aggregates mixed with cement and water. Its ease of preparation and high durability make it an essential material for civil construction and building projects.

Manufacturing Process of Ready-Mix Concrete

  • Ingredient storage

    Components such as cement, water, fine aggregate (sand), coarse aggregate (gravel), additives, and admixtures are stored separately.

  • Measurement

    This step involves accurately measuring the required quantities of each ingredient for a batch of ready-mix concrete, typically around 6 cubic meters.

  • Mixing

    The measured materials are thoroughly mixed to ensure homogeneity and prevent segregation. This ensures the mixture maintains its consistency and workability.

  • Delivery

    The freshly mixed concrete is loaded into mixer trucks and delivered to the construction site. It is crucial to pour the concrete within 90 minutes of mixing to maintain its quality and prevent premature hardening.

Ingredient storage

  • It is a mineral that hardens when it meets water. In general, type 1 normal Portland cement is used for ready-mix concrete making while other cements are used for specialized purpose.

  • Water must be clean and should not contain any oil, acid, or organic substance.

  • Aggregate that are small enough to pass 5mm sieve but too big to go through 0.08mm sieve (Saline 0.04% or less)

  • Aggregate that passes through Maximum aggregate (20mm, 25mm, 40mm) sieve but does not pass through 5mm sieve.

  • It’s the additive that is over 5% of the cement’s weight in general usage (fly ash, blast furnace slag fine powder, silica fume etc)

  • It’s the additive that is less than 1% of the cement’s weight in general (AE admixture, AE water reducing admixture, high functioning water reducing admixture, high range water reducer etc)

Measurement

Process to accurately measure the amount of original material (cement, aggregate, admixture) that are put inside one pack of ready-mix concrete (6m³)

Delivery

It’s a process to deliver the liquid concrete that went through measurement and mixing process and deliver it in a Mixer Truck and pour it on the construction site within 90 minutes.

Mix

Process to sufficiently mix the measured materials so that it won’t be separated and to evenly discharge such substance.