using weelbarrow and shovel 3 parts sand 1 part portland cement mix dry then add water mix until " buttery" add 2 part stone mix some more, look at what you have, then use your best judgment as to wether it needs more of either of the ingredients, only experience can help. when troweled the "cheese" should cover the stone, the colour should be grey not brown and water should not run freely on the surface. good luck
mortar are mixing by sand & cement and concrete is mixing by cement, sand & stone
exceed mixing and compacting
no
by mixing a nano-sized additive with cement.
exceed mixing and compacting
To ensure that posts are set in concrete without mixing, you can use pre-mixed concrete that only requires water to be added. This eliminates the need for mixing on-site and helps maintain the integrity of the concrete when setting the posts.
mortar are mixing by sand & cement and concrete is mixing by cement, sand & stone
exceed mixing and compacting
no
1:2:4
Water in concrete mixing plays several important roles: It hydrates the cement, which allows the concrete to harden and set. It helps to lubricate and facilitate the mixing process. Water also affects the workability and flowability of the concrete, allowing it to be poured and compacted easily. Adjusting the water content can also impact the strength and durability of the final concrete.
1:4:8
by mixing a nano-sized additive with cement.
exceed mixing and compacting
Small stones for mixing in concrete.
The water/concrete ratio, not mixing it well enough, quality of raw materials, the age of the concrete, and the temperature and humidity of the area surrounding the concrete.
It is not recommended to use salt water to mix concrete as it can cause corrosion of metal reinforcements within the concrete, leading to structural issues over time. It is best to use fresh water for mixing concrete.