Concrete Mix Design Flow Chart

The flowchart is a representation of the principal properties of aci mix design of concrete workability slump water and air content w c ratio cement coarse aggregate fine aggregate moisture adjustment trial mix civl 1112 aci mix design 3 10.

Concrete mix design flow chart.

Concrete mix designs are submitted for review so that the reviewer can verify the contractor is interpreting the construction documents correctly. Section 4 2 2 performance and design requirements cementitious content adequate to satisfy strength w cm durability and finishability. This process is usually adopted for structures which requires higher grades of concrete such as m25 and above and large construction projects where quantity of concrete consumption is huge. The concrete mix design involves various steps calculations and laboratory testing to find right mix proportions.

Cement water fine aggregate coarse aggregate which would produce concrete possessing specified properties such as workability strength and durability with maximum overall economy. Workability check with flow chart for concrete mix design grade m 20. Quick check. This is the quick and dirty way to check the required reinforcement.

Concrete beam design example. In all other cases the designated mix should be used. Now let s run through this flowchart with an actual example. Introduction concrete mix design means determination of the proportion of the concrete ingredients i e.

We ll come back to verify when we have an actual solution. Here is the standard chart table showing various grades of concrete mix design along with their respective ratios of cement sand and aggregates required. 1 consistence class s3 should be used for strip foundation concrete and consistence class s4 should be used for trench fill foundation concrete. Given say cover is 1 1 2 and we are using 8 bar.

Concrete shall not show signs visible signs of segregation. Types of concrete mixes 1. Floors comply with table 4 1 2 9 slump select slump at point of delivery not to exceed 9 inches or flow of 30 inches. These guidelines were developed to assist the engineer reviewing concrete mix designs.

Concrete mix ratio table. You can also watch our video here. 2 st4 mix for house and garage floors may only be used in conjunction with chapter 5 2 suspended ground floors.