The pycnometer method has been adopted to measure the specific gravity of cement. The following observations are made: Weight of empty dry pycnometer bottle = 682.4 gms Weight of empty dry pycnometer bottle + cement = 745.4 gms Weight of empty dry pycnometer bottle + cement + keroseneThe pycnometer method has been adopted to measure the specific gravity of cement. The following observations are made: Weight of empty dry pycnometer bottle = 682.4 gms Weight of empty dry pycnometer bottle + cement = 745.4 gms Weight of empty dry pycnometer bottle + cement + kerosene = 1335 gm Weight of empty dry pycnometer bottle completely filled with kerosene = 1279.2 gm The temperature during test = 27oC Specific gravity of kerosene at 27oC = 0.773 Determine the specific gravity of cement. = 1335 gm Weight of empty dry pycnometer bottle completely filled with kerosene = 1279.2 gm The temperature during test = 27oC Specific gravity of kerosene at 27oC = 0.773 Determine the specific gravity of cement.

Q: 1.46: A contractor claims that the mean compressive strength for a concrete mix is 5000 psi (μ) and…

A: Given data contractor’s correct or not contractor’s correct or not

Q: 2. Three samples of aggregates are sieved to obtain the grading curve. A set of different sieves is…

A: Three samples of aggregates are given:-Sieve sizeMass of sieve (g)Mass of sieve+aggregates…

Q: 4. Given: Vicat test data for a cement paste sample, Find: a. The initial set time, b. The final set…

A:

Q: A results of sieve analysis test for sample of Aggregate are shown in below Table: Sieve Size Wt…

A: Since we only answer up to 3 sub-parts, we’ll answer the first three. Please resubmit the question…

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A: Volume of bucket = 0.5 ft3Empty weight of the bucket = 20.3 lb

Q: Answer carefully the following questions : 1-What is the effect on physical properties of cement, if…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Example 2: Design a concrete mix using ACI method for casting a reinforced concrete slab with…

A: Compressive strength is 30 MPa Water required = 205 kg/m3

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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.