High Strength Concrete Mix Design Example

Although the american concrete institute aci doesn t use the term preferring mix proportioning.

High strength concrete mix design example.

One of the ultimate aims of studying the various properties of the materials of concrete plastic concrete and hardened concrete is to. But keeping in view the modern knowledge of concrete especially in case of high strength concrete we should improve the term. The initial stage began in the 1950s when hsc was studied and applied to prestressed concrete structures. The type of concrete generally with compressive strength of 6000psi 40mpa or greater is called as hsc.

Now what is mix design. Mix design can be defined as the process of selecting suitable ingredients of concrete and determining their relative proportions with the object of producing concrete of certain minimum strength and durability as economically as possible. Example using the absolute volume method aci 211 1 although not the only way to do a quality mix design the aci procedure is widely used. Understand concrete mix design submittal and approval process for ncdot.

Iii high early strength iv low heat of hydration v high sulfate resistance ncdot table 1024 1. For a given type of cement and aggregates used the reference number corresponding to the design strength at a particular age is interpolated from figure 1 to 4. The absolute volume method specified by aci 211 1 consists of 8 steps plus adjustments. Mix design of high strength concrete procedure.

Civil engineering animated videos civil engineering videos social m. High strength concrete hsc has been feasible with latest generation high range water reducing admixture hrwra and high reactive mineral admixtures like silica fumes matakaolin etc. The mean design strength is obtained by applying suitable control factors to the specified minimum strength. When designing a mix you should always consider the desired strength durability and workability of the concrete for the project in question.

Applications of high strength concrete are high rise building typically. This video animation animated video explains the concept of high strength concrete. The development of high strength concrete hsc in china occurred in two stages. Example 4 determine w c given a mix design with 32 gallons of water and 517 lbs of cement per yd.

The goal of the following example is too show the basic steps and how important minor changes in proportions. While a concrete mix design is a process of selecting ingredients for a concrete mixture and deciding on their proportions.