Recipe for strongest concrete on earth

The recipe for the hardest concrete on earth depends on the specific application and requirements of the concrete. However, a general recipe for high-strength concrete with compressive strength exceeding 150 MPa is as follows:

Ingredients:Portland cement: 800 kg/m³
Silica fume: 100 kg/m³
Fine aggregate (sand): 700 kg/m³
Coarse aggregate (crushed stone or gravel): 1100 kg/m³
Water: 190 kg/m³
Superplasticizer: 5 kg/m³




The hardest concrete on earth typically contains a combination of high-quality cement, aggregates, and water. Here's a recipe for making high-strength concrete:

Ingredients:Portland cement
Fine sand
Coarse aggregates (such as crushed stone or gravel)
Water
Superplasticizer (optional, to improve workability)

Instructions:

Mix the cement, sand, and coarse aggregates together in a ratio of 1:2:3 (one part cement, two parts sand, and three parts coarse aggregates).


Add water to the mixture gradually, while mixing continuously, until the desired consistency is achieved. The ideal water-cement ratio is typically around 0.35 to 0.4.


If needed, add a superplasticizer to the mixture to improve workability and reduce the amount of water required.


Mix the concrete thoroughly, making sure that all the ingredients are evenly distributed.


Pour the concrete into the desired formwork and allow it to cure for at least 28 days, ideally under moist conditions.

Note: It's important to use high-quality materials and follow the correct mixing and curing procedures to achieve maximum strength and durability. It's also important to take appropriate safety precautions when working with concrete, such as wearing gloves, protective clothing, and a respirator mask.