A blended cement concrete with 30% slag is used to place a 6 foot tall column in a single pour. The temperature of the concrete is 70 degrees. Will it be within the formworks design limits of 1000 psf?

Concrete Compressive Strength test Discussion: If the compressive strength results of your trial mix are low and considered unsatisfactory,how would you change your mix design to increase the strength without compromising theworkability of your concrete

(ASAP PLEASE) Design a concrete mix for the following conditions and constraints using the Absolute Volume Method. The material description are as follows:      I. Design Environment         i. Retaining Wall exposed to moderate sulfate exposure         ii. Required Design Compressive Strength = 27.6 MPa         iii. Standard Deviation of Compressive Strength of 1.8 MPa is expected (25 sample only)         iv. Minimum dimension = 200 mm         v. Minimum space between re-bars = 50 mm         vi. Minimum cover over re-bars = 50 mm         vii. Maximum Slump is required         viii. Only air entrained is allowed      II. Available Materials         i. Air Entrained – Manufacture Specification 5.5ml/1% air/100 kg cement (use maximum or +2% air                content)         ii. Coarse Aggregates                25 mm Nominal Maximum Aggregate Size                Rounded River Gravel (Note: apply water…

The following table represents a concrete mixture that has not been completely proportioned. The values given are the theoretical mixture proportions (oven dry basis). Material properties are also provided. Please answer the question at the end of the information given. Theoretical Mixture Proportions (oven dry basis) Water Cement Air Coarse Aggregate ASTM C 150 Type I Cement: Specific Gravity: 3.15 Coarse Aggregate: Well-graded 3/4 in. NMSA rounded gravel Oven-dry specific gravity: 2.63 Absorption: 1.10% Moisture content of stockpile: 3.10 % Oven-dry bulk density: 101.5 lb/ft³ Fine Aggregate: Natural Sand Oven-dry specific gravity: 2.60 Absorption: 3.20% Moisture content of fine stockpile: 3.50% Fineness Modulus: 2.80 265 lb/yd³ 675 lb/yd³ 6.00 % 1816 lb/yd³ What is the theoretical unit weight (in lbs/yd³) of fine aggregate in this concrete mixture (oven dry basis)? Round to the nearest whole number and do not include units when entering your answer.