estimate the water content of the mix estimate the content of aggregates, provide the estimated mix quantities

What is the effect of water–cement ratio on the permeability of hardened concrete? How does permeability affect the durability of the concrete structure?Using Figure 7.33, what is the approximate percent increase in the coefficientof permeability if the water–cement ratio increases from 0.5 to 0.6? Using thesame figure, what is the approximate percent increase in the coefficient ofpermeability if the water–cement ratio increases from 0.5 to 0.7?

A civil engineer wants to design a concrete mix design with the following criteria: Design a concrete strength: 25 MPa with a slump of 90 mm. Ignore the need for exposure Select a non-air entrained concrete Fine aggregates properties: Fineness modulus 2.67; Bulk specific gravity 2.66 Coarse aggregates properties: Maximum size aggregate of 25 mm with the bulk specific gravity 2.55 and dry-rodded mass 2000 kg/m3. Based on the criteria above 2.1. Calculate the required strength. 2.2. Calculate the water cement ratio. 2.3. Calculate the mix proportions of all materials including cement, water, fine aggregates, coarse aggregates, and air content for 1 m3.

Answer carefully the following questions : 1 Die is great Se me Meaning of normal con 3-what is the range of values of standard 4-How the consistency of cement paste is measured? 5-State the significance of initial setting time and final setting time of cement. 6-What is the range value of compressive strength for normal concrete 7 days and 28 days? ODOO TOSTSEC of C e Cheet or aggi gan grading on the properties of concrete? -Describe kinds of slump.. OF MOON Cone. what is the approximate value of Flexural su compressive 10-What is the approximate value of spli compressive strength? nave 25 MPa tor strength if we have 25 MPa for

Thank you so much. Please hand write if possible

Q1 What moisture condition should the coarse and fine aggregate be in when mixing the concrete? A Unknown B Saturated C Oven Dry D Air Dried E SSD   Q2 What restriction is placed on the size of a sample of a concrete batch? A 30 L B 15 L C 20 L D 10 L E 5 L

What is the amount of cement in kilograms needed for the design mix? Use two decimal places

Use metric please

Note:hand written solution should be avoided.

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.