Lab Report On Concrete Of Concrete

Procedure: 1. We got a Dixie cup with the mixture of iron fillings. 2. We got an iron magnet and stirred it around the mixture in the Dixie cup to attract all the iron filings. 3.

1. Fill the graduated cylinder nearly to the top with water, with a tall glass tube open at both ends (the water level with act as the closed end).

D. quality control tests done onsite provide a higher degree of quality control than precast concrete

Measure the initial width, length, and thickness of the steel specimen using a Dial Caliper. Relieve pressure in Amatrol T9014 and adjust the height of the bottom platform to insert steel specimen. Insert one pin into the bottom platform to hold the steel specimen into the fixture. Slide two locking bars down the steel specimen. Adhere one locking bar to the bottom of the specimen and one at the top, lock them in place using the attached thumb screws. Insert the Linear Vernier Caliper in the top locking bar and zero out the caliper, allowing it to rest on the bottom locking bar. Compress the hydraulic cylinder until the indicator reads a force of zero. Lock the Linear Vernier Caliper in place by tightening the top thumb screw. [1] Compress

filter the minicolumn. After washing, dry the resin in a 1.5 ml microcentrifuge for 2 minutes. 50

Tensile Test: We inputted the necessary information pertaining to our specimen into the program. Then the specimen was put into the jaws and the extensometer was attached. We then ran the program to test the specimen and recorded the max load.

Fill granulated cylinder with water by submerging and make sure no bubbles at the top.

Step #11- Repeat steps 3-9. But jot down the depth and diameter on trial 2

Place the covered crucible into a pipestem triangle, heating gently for 2 minutes. Using a wire tilt the cover to allow air to enter the crucible. Strongly heat the crucible for 10 minutes.

Most pours require you to own a bull float. A bull float is an approximately three-foot wide piece of metal attached to the end of a series of poles. This is used when finishing the concrete. You start by setting the float angled at approximately a thirty degree incline and run the float across the concrete. When you make it to the other side of the pad, you need to reverse the floats angle and have a one hundred and fifty degree angle instead. Newer bull floats have twistable handles which come in very handy. Older ones, however, you just have to rise up into the air really high to reach the desired

Figure 5. Keep 5 millimeter gap from the bottom of the chamber to the comb (PC: Science Buddies)

Testing for depth on site, law logs going down, plus the calculations or cutting into the road to get an actual sample.

What is concrete. According to Concrete Network (1999) “Concrete is made up of three basic components: water, aggregate (rock, sand, or gravel) and cement. Cement, usually in powder form, acts as a binding agent when mixed with water and aggregates. This combination, or concrete mix, will be poured and harden into the durable material with which we are all familiar”. The Roman's did it a little

precipitate; then pour over the solid in the funnel. Finally, pour two 10-mL portions of

Aggregate is one of the basic constituents of concrete. Its quality is of considerable importance because about three-quarter of the volume of concrete is occupied by aggregates. One of the physical properties of aggregate that influence the property of concrete is the grading of aggregate. The grading of aggregate defines the proportions of particles of different size in the aggregate. The grading of fine (size < 5 mm) and coarse (size > 5 mm) aggregates are generally required to be within the limits specified in BS 882: 1992.