high strength concrete mix design calculator

The below mentioned method can be applied to any grade of concrete by changing the values. 5-694.213 STRENGTH The strength of concrete is the next important pr operty to consider. Concrete Calculator (Concrete Mix Design Automatic Calculator): Concrete Mix design of M5, M7.5, M10, M15, M20, M25, M30 and higher grades of concrete is calculated as below: The procedure for finding the different grades of concrete mixes are same. Based on the optimized mix design, UHSC with a compressive strength of 180 MPa can be certainly fabricated. entrained air will have a lower strength than the sa me mix without entrained air, but the concrete can attain strengths required for most purposes by an increase in the cementiti ous factor of the mix or by reducing the water content. Finally, for this type of flowable UHSC, a mixing time and speed of 5 min and 40 rpm, respectively, and natural self-compacting without using a tamping bar are recommended. The optimum amount of superplasticizer ranges between 1.3% and 1.6% and the most suitable slump flow is 750 mm. The use of very fine SF with a specific surface area of 13.7 m 2/g and diorite, which is a type of coarse aggregate, improves the compressive strength of UHSC. The most appropriate W/B ratio, unit water content, and sand–total aggregate (S/a) ratio are 12.5%, 150 kg/m 3, and 0.35, respectively. Based on several experimental tests, the optimized SCM proportions for cement, silica fume (SF), ground-granulated blast furnace slag (BFS), and gypsum are 55%, 20%, 20%, and 5%, respectively. Various parameters, such as the supplementary cementitious material (SCM) type and amount, water–binder (W/B) ratio, fine and coarse aggregate type and amount, chemical admixture, and mixing process, were considered and their effect on the compressive strength was examined. This study aims to optimize the proportion and constituents of the mixture used for fabricating 180 MPa ultra-high-strength concrete (UHSC) including coarse aggregate. The addition of 1.6 1.8 litres of water to a 20kg bag of HI-STRENGTH 36 will produce around 11.5 litres of concrete. 3.2 Target Strength for Mix Proportioning In order that not more than the specified proportion oftest results arc likely to fall belowthe characte ristic strength, the concrete mix has to he proportioned for higher target mean compressive strength J.The margin over characteristic strength is given h) ihe following relation: f ek f.:k + 1.65.

High strength concrete mix design calculator