Dry Lean Concrete Mix Design Calculation
Abs volume 667 3 15 x 62 4 cement 667 3 15 3 39 total cementious 667 miller stone 1590 2 6 9 80 evert sand 1242 2 65 7 51 water 300 1 481 1590 2 60 x 62 4 1242 2 65 x 62 4 4 81 air 5 5 1 485 total 3799 27 00 w cm 0 45 unit wt.
Dry lean concrete mix design calculation. 140 72 basic concrete mix design materials pounds of. Very lean mix is not desirable since it does not contain enough finer material to make the concrete cohesive. Go here to view the drymix concrete calculator. Weight of cement 384 8 kg m 3.
Weight of coarse aggregate 1073 33 kg m 3. Mix design requirements are based on intended use environment etc. Keep dry and store off the ground. You can then share the summary report of the mix calculation with your team via email.
The higher the aggregate cement ratio the leaner the concrete. It is good for a flat surface on uneven or dirty terrain. The addition of 1 8 2 litres of water to a 20kg bag will produce around 9 5 10 litres of concrete. The grading of aggregate influences the mix proportions for a specified workability and water cement ratio.
For making trial 2 weight of material required will be calculated for 4 no s cube assuming 25 wastage. C7 5 concrete the volume of. Does your bag look different to the one here. Calculate required quantity of concrete.
The concrete hub app provides a free fast and easy process to create a concrete mix design. Weight of water 197 4 kg m 3. Dry lean concrete is a mixture in which the amount of cement is less than the amount of liquid that is present in the layers. Or someone familiar with the old website which served well for 20 odd years but a new decade needs a more responsive design and simpler.
Mix design mix design is the process of determining required and specifiable characteristics of a concrete mixture. Determine quantities of aggregates required to prepare this lean mix concrete. Instructions and safety information can be found on the back of the bag. Performance approach desirable characteristics.
Weight of fine aggregate 790 3 kg m 3. Basic concrete mix design materials pounds of material s g. The type of aggregate influences strongly the aggregate. Concrete mix proportions for trial mix 2.
Coarser the grading leaner will be mix which can be used. Lean concrete is a mix where the amount of cement is lower than the amount of liquid present in the strata. In lean concrete less quantity of paste is available for providing lubrication per unit surface of aggregate and hence the mobility of aggregate is restricted. Prescriptive approach limits on materials.