How Much Does a Yard of Concrete Weigh?

Understand the different factors at play when determining the weight of concrete.

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When asking how much a yard of concrete weighs, it’s important to note that yard is actually cubic yard

The weight of a cubic yard of concrete can vary based on several factors.

Factors To Consider

Concrete Mix Design & Density of Aggregates

The composition of the concrete mix significantly affects its weight. Concrete mixes typically consist of cement, water, aggregates (such as sand, gravel, or crushed stone), and sometimes additives or admixtures. Different proportions of these materials can result in variations in density and weight. Aggregates with higher densities, such as certain types of gravel or crushed stone, will contribute more to the weight of the concrete.

Factor Weight (lbs) Weight (kg)
Standard Mix 3,000 - 4,000 1,360 - 1814
High-Density Aggregates 3,500 - 4,500 1,587 - 2,041
Lightweight Aggregates 2,500 - 3,500 1,134 - 1,587
High Cement Content 3,500 - 4,500 1,587 - 2,041
Low Cement Content 2,500 - 3,500 1,134 - 1,587

Water Content

The amount of water added to the concrete mix affects its density and weight. Higher water content can result in lighter-weight concrete, while lower water content leads to denser and heavier concrete.

Factor Weight (lbs) Weight (kg)
Low Water Content 3,500 - 4,500 1,587 - 2,041
High Water Content 2,500 - 3,500 1,134 - 1,587

Air Content

Some concrete mixes contain air-entraining agents to introduce microscopic air bubbles into the mixture. This can improve the workability and durability of the concrete. The presence of air voids decreases the overall density of the concrete, resulting in a slightly lower weight per cubic yard.

Factor Weight (lbs) Weight (kg)
Air-Entrained Concrete 2,800 - 3,800 1,270 - 1,723
No Air-Entrained Concrete 3,000 - 4,000 1,360 - 1,814

Admixtures and Additives

The inclusion of admixtures or additives in the concrete mix, such as accelerators, retarders, or plasticizers, can influence its weight. These materials may affect the density of the concrete and, consequently, its weight.

Factor Weight (lbs) Weight (kg)
With Admixtures (e.g., Plasticizers) 3,000 - 4,000 1,360 - 1,814
Without Admixtures 3,000 - 4,000 1,360 - 1,814

So, how much does a yard of concrete weigh? Given these factors, the weight typically falls within the range of 3,000 to 4,000 pounds (1,360 to 1,814 kilograms) for 1 cubic yard. However, precise calculations require knowledge of the specific mix design and the densities of the materials used. 

If you need an exact weight for a particular concrete mix, it's best to consult the manufacturer or supplier, as they can provide the necessary information based on the specific materials and proportions used in the mix.