the strength of concrete is effected by water /cement ratio
as the water/cement ratio increases the strength of the concrete decreases
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 typically measures in cubic yards. Anything over 2 cubic yards is a lot of mixing, so you'd likely want to order that from a concrete company in a ready mix concrete truck.
Ken W. Day has written: 'Concrete mix design, quality control and specification' -- subject(s): Concrete, Quality control, Mixing, Specifications
To ensure a strong and durable final product when mixing concrete, it is important to follow these best practices: Use the correct ratio of cement, sand, and aggregate. Thoroughly mix the ingredients to achieve a uniform consistency. Add the right amount of water gradually to achieve the desired workability. Avoid over-mixing or under-mixing the concrete. Use quality materials and equipment. Properly cure the concrete to prevent cracking and ensure strength.
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
The best techniques for achieving a high-quality concrete floor finish include proper surface preparation, using high-quality materials, applying the right amount of water during mixing, using the correct tools for finishing, and allowing sufficient time for curing.
no
exceed mixing and compacting
1:2:4
To achieve a smooth concrete finish for your project, make sure to properly prepare the surface by cleaning and leveling it. Use a high-quality concrete mix and follow the instructions carefully when mixing and pouring the concrete. After pouring, use a trowel to smooth out the surface, and consider using a concrete sealer to enhance the finish and protect it from damage.
From 1:4 (one bag cement to 4 bag sand) to 1:6