A concrete mix has a ratio os 1:2:4 by mass. The properties of the materials to be used are tabulated below. MATERIALS SPECIFIC GRAVITY CEMENT 3.33 SAND 2.65 GRAVEL 2.67 Cement weighs 40 kg per bag. Use 24 liters of water per bag of cement.

Q: The pycnometer method has been adopted to measure the specific gravity of cement. The following…

A: Pycnometer: A pycnometer is a device used in the civil laboratory device used to measure the density…

Q: Compute for the concrete mix proportion for a 6" diameter concrete cylinder mold with 12" height and…

A: Use ACI 318 All tables are taken from ACI 318 1. Find Characteristics Strength of concrete : f'c =…

Q: 21. How many total cubic yards of coarse aggregate would be required to produce 150 yd³ of concrete…

A: Problem 21 : Data given  Concrete to be produced =  150 yd3 Nominal size of coarse aggregates =  2…

Q: Grade of Specimen Mass of specimens (g) concrete 7 days 14 days 28 days Air Water Air Water Air…

A: We know, Density=MassVolume Here, volume = 100 x 100 x 100 = 106 mm3 = 0.001 m3  The density is…

Q: The following table represents a concrete mixture that has not been completely proportioned. The…

A: The water to cement ratio compares how much water versus cement is used in a concrete mix. A low…

Q: From the following trial batch data, determine the material weights for a cubic yard batch. Initial…

A: Given- Cement - 8.20 Water - 3.45  Fine aggregate          initial Wt.- 32           Final Wt,…

Q: 635 kg of fine aggregate and 910 kg of coarse aggregate are needed to be mixed for producing 1m3 of…

A: Moisture Content : The amount of water is present in aggregates called as moisture content of…

Q: ou want to increase the sustainability of a concrete mixture by replacing 35% of the portland cement…

A: The specific gravity of ordinary portland cement is 3.15 which can be assumed as specific gravity of…

Types of Cement

Cement is a fine mixture of limestone, chalk, or marl and clay which when mixed with water, becomes compacted due to the formation of strong molecular bonds. Due to hydration, cement turns into a hard mass when left for a sufficient amount of time upon mixing with water. The water turns the cement compounds into gel-like submicroscopic particles having higher surface areas. It is due to the hydration properties of cement, they are often known as hydraulic cement. For instance, Portland cement is a popular example in this category.