How to Mix Concrete

1 Answer

Answer :

How to Mix Concrete
When it comes to construction of foundations, footings, sidewalks and even driveways, you’ll always see concrete being used. Of course, mixing it the right way to achieve the right consistency is very important, otherwise your concrete won’t be very strong. If you’re a do-it-yourself fellow, you mix concrete by yourself. Here’s what to do.

What You’ll Need:
Pre-mixed cement
Water
Tub or wheelbarrow
Shovel
Coloring agent (optional)
Procedure:
Purchase some pre-mixed cement from a hardware store. If you’re a newbie at this task, it’s better if you start with this type of material. Read the instructions carefully. After you get used to pre-mixed cement, you can proceed to making your own concrete mixture, composed of sand, aggregate (usually pea gravel) and cement.
Wear a face mask, gloves and protective eyewear when mixing concrete. Dust from the mix can be caustic.
Pour some pre-mixed cement into the tub or wheelbarrow.
Add a small amount of water, bit by bit. At the same time, use the shovel to mix it. Thrust the shovel under the pre-mixed cement, then carefully fold it over on itself. This will distribute the wetnesss.
As you mix the concrete keep adding small amounts of water, until the whole mixture looks the same and you get a consistency that’s not soupy or dry.
Keep mixing the concrete. The final consistency you must get is one that’s similar to cookie dough. If you think there’s too much water, add some cement.
To test if you’ve got the right concrete consistency, use the shovel’s blade as a “knife”, and try cutting a shallow channel through the pre-mixed concrete’s surface.
If it’s too wet, the channel will fill in with water. Add some more concrete, then keep mixing.
If the concrete is too dry, the walls will crumble. Add some more water, and mix the concrete again.
If you want your concrete to have a different color than the boring gray one, mix in a coloring agent.
As you know how to properly mix it, concrete is a very useful material to have. Just follow these steps, so you’ll end up with a mix that will give you sturdy structures.

Related questions

Description : How to Mix Paint Colors

Last Answer : How to Mix Paint Colors Whether you want to paint a house or if you want to create a painting, you need just the right color. The problem is that paint can be expensive, and it can be ... you'll never have a problem running off to the hardware store to buy a particular color of paint again.

Description : How to Mix Mortar

Last Answer : How to Mix Mortar Building a wall or a bridge is no easy task; you can't just keep stacking the bricks or stones, otherwise they'll fall over. You need to mix an effective batch of mortar. This ... Keep these steps in mind and you'll end up with a properly mixed mortar that you'll find reliable.

Description : How to Paint Concrete

Last Answer : How to Paint Concrete Are you tired of looking at your boring wall? Do you want decorate your floor? Having a newly-painted wall and floor is a refreshing idea. You just need to have ... project for home improvement. Remember to prepare the surface first before painting and the rest will be easy.

Description : How to Build Concrete Steps

Last Answer : How to Build Concrete Steps Making a good, serviceable set of concrete steps can seem daunting, and rightly so. When poorly-done, concrete steps can end up unbalanced, shaky, and will be ... . After the curing period, remove the side forms and use concrete patching compound to patch imperfections.

Description : How to Stamp Concrete ?

Last Answer : How to Stamp Concrete Stamping concrete is an economical way to decorate the surfaces of concrete without having to use tiles, paint or any conventional method of decorating. You can save even more money ... when applying a light coat. A gallon should be able to easily cover 200 square feet.

Description : How to Pour a Concrete Slab ?

Last Answer : How to Pour a Concrete Slab Pouring a concrete slab is not as difficult as some people may think. The first thing that you need to do is to determine the size of the slab you ... expansion and contraction of the concrete while it is setting up and prevent cracks and other unwanted irregularities.

Description : How to Level a Concrete Slab Before Flooring ?

Last Answer : How to Level a Concrete Slab Before Flooring This is a project that shouldn't be too difficult to tackle. Leveling a concrete slab should be done when it's not too cold outside or raining, since ... as necessary to match the surrounding concrete. Stay off the floors for at least 12 to 24 hours.

Description : Can concrete be poured in the rain?

Last Answer : No, inadvisable.

Description : I need something made out of stone or concrete, what kind of service or company should I be looking for?

Last Answer : What you’re describing is “masonry casting”, but for a small, non-commercial one-off run like you’re describing, it’s going to be expensive IF they even care about an order that small.

Description : After pouring concrete, what material should be used to fill the gap left by the forms?

Last Answer : answer:What's the purpose? Car park? I would vote for pea gravel. The ground will heave and swell and shrink, and the drainage might be better. If it were my gravel and concrete would throw ... topsoil as a carrier under the gravel. Daisies,bluets, black-eyed Susans and Shirley poppies might pop up.

Description : Did any workers get buried in the concrete when they were building Hoover Dam?

Last Answer : Almost 100 died while building the Dam.

Description : Concrete Mixers

Last Answer : What is Concrete? Concrete is a construction material composed of cement (commonly Portland cement) as well as other cementitious materials such as fly ash and slag cement, aggregate ( ... to move the material to precise locations, multi-floor buildings and other distance-prohibitive locations.

Description : How to Make a Concrete Curb

Last Answer : How to Make a Concrete Curb If you want your yard to have long-lasting and high-quality borders, what you can do is install concrete curbing to it. It's not a very difficult project, since there are ... look great on your outdoor area. Follow these tips and you'll surely get this done in no time.

Description : In what areas is concrete used?

Last Answer : Concrete is the oldest building material, which began to be used in ancient civilizations. Due to centuries of development, today's concrete is a very high-quality building material and has a fairly ... is to understand in advance some of the nuances and understand what kind of material is needed.

Description : What features do aerated concrete attic spaces have?

Last Answer : What features do aerated concrete attic spaces have? Modern houses built from aerated concrete blocks are distinguished by a variety and originality of designs. They are especially unique in ... from aerated concrete makes it possible to implement such projects in the shortest possible time.

Description : Should I put a tarp down in a new garage, or let it go until Spring?

Last Answer : answer:First, good not doing it now. One house the painters assured us the epoxy would be just fine putting it down in the cold weather, and it wasn't. I would probably just use cardboard, but ... acid it will be fine. I have had neighbors epoxy their garage after owning their houses a couple years.

Description : In a construction site, a crane lifts 1000 kg of concrete mix to roof top at a height of 20 meters in 50 seconds. If the value of gravity 'g' due to earth is 10 m s-2, the power of elevator will be. -Physics

Last Answer : 4 KW (kilowatt)

Description : For M 150 mix concrete, according to I.S. specifications, local bond stress, is (A) 5 kg/cm2 (B) 10 kg/cm2 (C) 15 kg/cm2 (D) 20 kg/cm

Last Answer : Answer: Option B

Description : Minimum number of 50 kg cement bags per cubic metre of concrete for a mix corresponding to crushing strength 280 kg/cm2 at 28 days, are (A) 5.0 (B) 6.5 (C) 7.0 (D) 7.5

Last Answer : Answer: Option B

Description : Which of the following represents a carpet of sand-bitumen mix without coarse aggregates? (A) Mastic asphalt (B) Sheet asphalt (C) Bituminous carpet (D) Bituminous concrete

Last Answer : Answer: Option B

Description : For the construction of R.C.C. slabs, columns, beams, walls, etc. the grade of concrete mix used, is (A) 1 : 3 : 6 (B) 1 : 1½ : 3 (C) 1 : 2 : 4 (D) 1 : 1 : 2

Last Answer : (C) 1 : 2 : 4

Description : The shrinkage of concrete (A) Is proportional to water content is the mix (B) Is proportional to cement concrete (C) Increases with age of concrete (D) All the above

Last Answer : (D) All the above

Description : 1% of voids in a concrete mix would reduce its strength by about (A) 5 % (B) 10 % (C) 15 % (D) 20 %

Last Answer : (A) 5 %

Description : After casting, an ordinary cement concrete on drying (A) Expands (B) Mix (C) Shrinks (D) None of these

Last Answer : (C) Shrinks

Description : Pick up the correct statement from the following: (A) Insufficient quantity of water makes the concrete mix harsh (B) Insufficient quantity of water makes the concrete unworkable (C) Excess quantity of water makes the concrete segregated (D) All the above

Last Answer : (D) All the above

Description : M 150 grade of concrete approximates (A) 1 : 3 : 6 mix (B) 1 : 1 :2 mix (C) 1 : 2 : 4 mix (D) 1 : 1.5 : 3 mix

Last Answer : (B) 1 : 1 :2 mix

Description : Pick up the correct statement from the following: (A) The weight of ingredients of concrete mix, is taken in kilograms (B) Water and aggregates are measured in litres (C) 20 bags of cement make one tonne (D) All the above

Last Answer : Answer: Option D

Description : For the construction of the retaining structures, the type of concrete mix to be used, is (A) 1 : 3 : 6 (B) 1 : 2 : 4 (C) 1 : 1½ : 3 (D) 1 : 4 : 8

Last Answer : Answer: Option C

Description : If the slump of a concrete mix is 60 mm, its workability is (A) Very low (B) Low (C) Medium (D) High

Last Answer : Answer: Option C

Description : According to Water-Cement Ratio Law, the strength of workable plastic concrete (A) Depends upon the amount of water used in the mix (B) Does not depend upon the quality of cement mixed with aggregates (C) Does not depend upon the quantity of cement mixed with aggregates (D) All the above

Last Answer : Answer: Option D

Description : If 50 kg of fine aggregates and 100 kg of coarse aggregates are mixed in a concrete whose water cement ratio is 0.6, the weight of water required for harsh mix, is (A) 8 kg (B) 10 kg (C) 12 kg (D) 14 kg

Last Answer : Answer: Option C

Description : Inert material of a cement concrete mix, is (A) Water (B) Cement (C) Aggregate (D) None of these

Last Answer : Answer: Option C

Description : Workability of concrete is inversely proportional to (A) Time of transit (B) water-cement ratio (C) The air in the mix (D) Size of aggregate

Last Answer : Answer: Option A

Description : Shrinkage in concrete can be reduced by using (A) Low water cement ratio (B) Less cement in the concrete (C) Proper concrete mix (D) All the above

Last Answer : Answer: Option D

Description : M10 grade of concrete approximates (A) 1 : 3 : 6 mix (B) 1 : 1 : 2 mix (C) 1 : 2 : 4 mix (D) 1 : 1.5 : 3 mix

Last Answer : Answer: Option A

Description : For a concrete mix 1:3:6 and water cement ratio 0.6 both by weight, the quantity of water required per bag, is (A) 10 kg (B) 12 kg (C) 14 kg (D) 16 kg

Last Answer : Answer: Option C

Description : Pick up the correct statement from the following: (A) Higher workability indicates unexpected increase in the moisture content (B) Higher workability indicates deficiency of sand (C) If the concrete mix is dry, the slump is zero (D) All the above

Last Answer : Answer: Option D

Description : Pick up the incorrect statement from the following. While performing preliminary test on concrete (A) Proportions of the material and water should be the same as to be used at the work site (B) ... in air-tight containers (D) Concrete ingredients should be kept at a temperature of 37° 2°C

Last Answer : Answer: Option D

Description : The concrete mix which causes difficulty in obtaining a smooth finish, possess (A) Segregation (B) Internal friction (C) Hardness (D) Bleeding

Last Answer : Answer: Option C

Description : The following proportion of the ingredients of concrete mix, is not in conformation to arbitrary method of proportioning (A) 1 : 1 : 2 (B) 1 : 2 : 4 (C) 1 : 3 : 6 (D) 1 : 4 : 10

Last Answer : Answer: Option D

Description : Pick up the correct statement from the following: (A) An increase in water content must be accompanied by an increase in cement content (B) Angular and rough aggregates reduce the workability of the ... The slump of the concrete mix decreases due to an increase in temperature (D) All the above

Last Answer : Answer: Option D

Description : Workability of concrete mix with low water cement ratio is determined by (A) Tensile strength test (B) Slump test (C) Compaction factor test (D) Flexural strength test

Last Answer : Answer: Option C

Description : The property of fresh concrete, in which the water in the mix tends to rise to the surface while placing and compacting, is called (A) Segregation (B) Bleeding (C) Bulking (D) Creep

Last Answer : Answer: Option B

Description : Internal friction between the ingredients of concrete, is decreased by using (A) Less water (B) Fine aggregates (C) Rich mix (D) More water and coarse aggregates

Last Answer : Answer: Option D

Description : Pick up the correct statement from the following: (A) Segregation is necessary for a workable concrete (B) Consistency does not affect the workability of concrete (C) If the concrete mix is dry, the slump is maximum (D) None of these

Last Answer : Answer: Option D

Description : For batching 1:3:6 concrete mix by volume, the ingredients required per bag of 50 kg cement, are: (A) 70 litres of sand and 120 litres of aggregates (B) 70 kg of sand and 140 litres of ... C) 105 litres of sand and 140 litres of aggregates (D) 105 litres of sand and 210 litres of aggregates

Last Answer : Answer: Option D

Description : Pick up the incorrect statement from the following: (A) Concrete for which preliminary tests are conducted, is called controlled concrete (B) Bulking of sand depends upon the fineness of grains (C) Concrete mix 1 : 6 : 12, is used for mass concrete in piers (D) All the above

Last Answer : Answer: Option D

Description : The basic purpose of a retarder in concrete is (A) To increase the initial setting time of cement paste in concrete (B) To decrease the initial setting time of cement paste in concrete (C) To render the concrete more water tight (D) To improve the workability of concrete mix

Last Answer : Answer: Option A

Description : The depth of concrete bed of the foundation depends upon (A) The projection of the concrete block beyond the footing over it (B) The upward soil pressure (C) The mix of the concrete (D) All the above

Last Answer : Answer: Option D

Description : The process of consolidating concrete mix after placing it in position is termed as. (a) Curing (b) Wetting (c) Compaction (d) All of these

Last Answer : (c) Compaction