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WESTERN SLOPE CONCRETE
Main Office: P.O. Box 1319 | Carbondale, Colorado 81623 | (970) 963-3973 (P) | (970) 963-2412 (F)
Carbondale Batch Plant: (970) 963-0180 or (970) 963-9070 | (970) 963-1547 (F)
CONCRETE MIX DESIGN
Mix No. 7.5 3/8 70/30 -- 2.5” Line Pump System - Misc. Exterior Concrete
Minimum 28 Day Compressive Strength = 4500 psi
#8 Intermediate Aggregate
Type IL Cement
Air entrained
Mix Components Per CY Absolute Volume
Cement 545# 2.77 ft3
Flyash 160# 1.17 ft3
Water 349# 5.61 ft3
Water Reducing Admix
(Pozz 322N) 2.0 – 5.0 oz/cwt
(Polyheed 997) 3.0 – 7.0 oz/cwt
(HRWR) --
Air Entrainment Admix
(Micro-air/AE-90) as required 1.62 ft3
Coarse Aggregate --
Intermediate Aggregate 930# 5.62 ft3
Fine Aggregate 1715# 10.37 ft3
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TOTAL 3699# 27.16 ft3
Water Cement Ratio = .50 W/C Maximum
Theoretical Unit Weight = 136.19 #/ft3
Theoretical Yield = 27.16 ft3/cy @ 6.0 % Entrained Air
% Sand of Total Aggregate = 65 %
PHYSICAL PROPERTIES
Target Slump Range = 3.0” – 6.0”
Target Air Content = 6.0% - 9.0%
This mix design has been designed according to ACI 211.1-93 Section 5.3.7.2(Absolute volume method).
The above weight is based upon aggregates in SSD condition.
Field corrections may be made for actual moisture conditions of the aggregates.
Air entraining agent dosage may be adjusted for field conditions.
Design mix cementitious content is stated as a minimum and Casey Concrete reserves the right to increase cementitious content.
Chemical admixtures are added in accordance with the manufacture’s recommendations, and may be adjusted to maintain mix
properties. Aggregate weights may be adjusted to maintain yield and design gradations.
SUBMITTAL WAS REVIEWED FOR DESIGN CONFORMITY & GENERAL
CONFORMANCE TO CONTRACT DOCUMENTS ONLY. THE CONTRACTOR IS
RESPONSIBLE FOR CONFIRMING & CORRELATING DIMENSIONS AT JOBSITE
FOR TOLERANCE, CLEARANCE, QUANTITIES, FABRICATION PROCESSES &
TECHNIQUES OF CONSTRUCTION, COORDINATION OF HIS/HER WORK WITH
OTHER TRADES & FULL COMPLIANCE WITH THE CONTRACT DOCUMENTS.
SHOP DRAWING / SUBMITTAL REVIEW
REVIEWED
REVISE & RESUBMIT AS NOTED
REVIEWED AS NOTED
REJECTED/RESUBMIT AS SPECIFIED
DATE:BY:01/08/2025 Dustin Burner
DB STRUCTURAL DESIGN