whefax.blogg.se - High strength concrete mix design calculator

Table 2 and Table 3 provide estimates of required mixing water for concrete made with various maximum sizes of aggregate, for non-air and air-entrainment concrete, respectively. The quantity of water per unit volume of concrete required to produce a given slump is dependent on: Estimation of mixing water and air content

*May increased 25mm for methods of consolidation other than vibrationįig. Plain footings, caissons, and substructure walls Table 1 Recommended slumps for various types of construction Construction type To read more about slump, Please click here. The values provided in table can be used only when vibration is used to consolidate concrete.

If slump is not specified, a value appropriate for the work can be selected from Table 1. Procedure for ACI Method of Concrete Mix Design 1.

Relationships between strength and water-cement ratio or ratio of water-to-cement plus other cementitious materials, for available combinations of cements, other cementitious materials if considered, and aggregates.

Specific gravities of Portland cement and other cementitious materials, if used.

Mixing-water requirements of concrete developed from experience with available aggregates.

Bulk specific gravities and absorptions or moisture content of aggregates.

Unit weight (dry rodded density) of coarse aggregate.

Sieve analyses of fine and coarse aggregates.

Estimation of fine aggregate contentĪCI Method of Concrete Mix Design Required Data:īefore starting concrete mix design, basic information on raw materials shall be prepared which include: Selection of water-cement or water-cementitious material ratio

Procedure for ACI Method of Concrete Mix Design.