Question about Building Materials

3 Answers

What is the correct ratio for mixing concrete?

Posted by on

  • Jake Gibson
    Jake Gibson Jan 27, 2016

    Cynthia, great question regarding the cement mix ration for concrete. It seems like there would be a formula somewhere on the bags. I've also heard you could order precast concrete, especially if you have a large section to form and pour. Good luck with your project, I'd love to see pictures when you're done.

  • Wesley Colberth
    Wesley Colberth Mar 05, 2016

    Hey Cynthia, great question about the correct ration for mixing concrete. I have worked with concrete before so its safe to assume that your having a lot of trouble on your own mixing concrete. I suppose that ready mix concrete can be delivered so that the ratio of the mix is correct. http://jersonsconcrete.com/services/

×

3 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Teacher:

    An expert who has written 2 tips or uploaded 1 video tip.

  • Expert
  • 152 Answers

Generally about 2:3 water to cement. it should say on the bag, if it is too watery add more powder, if it is too thick add more water

Posted on Jan 15, 2013

  • bzet1820 Dec 14, 2014

    you are wrong with your answer - you do know that?

×

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 700 Answers

For basic mix use (mix by volume):

4 parts sand
1 part aggregate (stones about 1/4" to 3/4")
1 part cement
1.5 part water (adjust accordingly! that amount is average! add 1 part first and then splash during mix till you have consistent doughy structure! if for pouring - add all of that and then up to 1/2 part more)

this mix is good to use as base under the tiles, foundations for mounting paving, stones, benches, first layer of render on the wall, and whatever will be covered with something else.

for working floor use following mix:
3 part sand
1 part aggregate
1.5 part cement
1.25 to 1.5 part water - see remarks above

there is several other proportions and mixes, unfortunately exceeding scope of this short answer

Posted on Dec 14, 2014

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

Concrete is not just a mixture of cement to water. Concrete is a blend of different mortar and or concrete sands. And an aggregate rock if creating foundation or slab structures. Generally you can buy a concrete blend sand with aggregate, (either gravel or river rock round ,(uptown 2"), at a local landscape supply shop. Or they sell pre mix bags of ready mix that you just add water too. Dependant on the desired slump that works best.

A good do it yourself mix is 3to1 or 4to1. 4 parts concrete sand blend to one part cement. Water depends on slump. Buckets work great for measuring. Use a concrete mixer with aggregate sandcastle mortar mixer without aggregate.

Posted on Jun 29, 2014

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Oil petrol mixture for Rockwell 26cc weedeater


Two cycle engines run on a mixture of gasoline and oil. Each engine type is designed to run on a specific gas-to-oil mix ratio.
IMPORTANT: Use only oil that is labeled for use in "Two-cycle" or "Two-stroke" engines. Home Depot and other stores now have "premixed fuel" of gas and 2 cycle oil.
To mix two-cycle fuel, start by putting correct amount of oil in gas can. Then slowly add correct amount of gasoline. Do not try to mix gas and oil directly in gas tank of equipment.

IMPORTANT: Do not use any fuel that is over 30 days old. Do not mix more fuel than you are likely to use in a month. Old fuel can gum carburetors and prevent starting. Always use fresh fuel.

The chart below shows correct amount of oil per gallon that each mixing ratio requires. Expect that yours will be between 32 gas to1 oil and 50 to 1. 32:1 and 50:1 are most popular.
Ratio GAS:OIL UNITED STATES OIL per 1 U.S. GALLON Gasoline
(128 oz.)
*INTERNATIONAL OIL per 1 IMPERIAL GALLON Gasoline
(160 oz.)
*INTERNATIONAL OIL per 1 LITER Gasoline
(metric)
32:1 4 oz. 5 oz. 31.25 mL 40:1 3.2 oz. 4 oz. 25 mL 50:1 2.6 oz. 3.2 oz. 20 mL

Jan 01, 2015 | Weedeater Garden

1 Answer

How do I fix rotted wooden expansion joints in my driveway?


there is a tuberous strip that is used as expansion joints in concrete. To get the correct thickness you may have to use several strips together. they are normally black in colour and you may have to lay in several strips first and then use something like a bolster ( brick cutter) to drive in the last strip. Talk with your concrete supply shop for advice and products ( shop that sells concreting tools and products.)
grout will crack out at that thickness. Because you have such a wide gap (2'' or 4''). I would make up a good concrete mix using bondcrete ( brand name for concrete glue) in the mix and use that with a strip of black jointer either side
Seeing how the timber lasted 40 years if you used treated timber this time it will last another 40 years -probably longer.

Dec 05, 2014 | Cars & Trucks

2 Answers

Can I buy concrete mix online?


Sure, you can buy concerete mix online. Try Home Depot: http://www.homedepot.com/webapp/catalog/servlet/Search?storeId=10051&langId=-1&catalogId=10053&keyword=concrete+mix&Ns=None&Ntpr=1&Ntpc=1&selectedCatgry=Search+All

Jul 22, 2013 | Building Materials

1 Answer

What is the sand and cement mix ratio for a patio


Hello. The typical volume-ratio for a self-mix concrete in this application would be one part Portland cement to three parts sand. For a stronger pad (capable of higher stress loads) it would be as low as two parts sand, but this is not necessary for a standard patio pour. The gravel should be three parts, more will make it tougher to achieve a smooth finish. Re-cap: Portland cement - 1 part, sand - 2 or 3 parts, gravel - 3 parts. Hope this helped.

Apr 12, 2011 | Garden

1 Answer

Echo chainsaw 16in. model 280 E(P) or 290 EVL(P) \r\nLooking for the correct oil and gas mixture ?


The mixture for most echo products is 50:1 ratio. You can use the Stihl fuel mix in this unit .. The Stihl fuel mix is also a 50:1 ratio.

Mar 29, 2011 | Echo Garden

1 Answer

What is the fuel mix ratio for Partner Active 111 concrete saw


50-1 withe Husqvarna two stroke oil, 25-1 with any other two stroke oil, alaways try to use Husqvarna two stroke oil.

Mar 05, 2011 | Garden

1 Answer

Mixing formula for concrete garage floor,concrete,gravel and sand


There should be mixing instructions on the bag of concrete, but it is 1 part cement, 2 parts sand and 3 parts gravel.

May 24, 2010 | RTO M-D Building Products Carpentry &...

2 Answers

WHAT IS THE CORRECT FUEL TO 2 STROKE OIL RATIO FOR A 2006 KAWASAKI KX85


It all depends on what type (and brand) of two stroke oil you're using. For example, some non-synthetic two stroke oils are supposed to be mixed at a ratio of 20:1. While most synthetic oils are designed to be mixed anywhere from 36:1 to 100:1. Your best bet is to follow the advice of the folks at your dealer as to the type of oil to use - and then follow the recommended mixing ratio as detailed in the oil manufacturer's instructions.

Nov 07, 2009 | 2006 kawasaki KX 125

1 Answer

Weed eater TE475 - fuel ratio


FUELING ENGINE
WARNING:
Remove fuel cap slowly
when refueling.
HELPFUL TIP
To obtain the correct oilmix
ratio, pour 3.2 ounces of
2--cycle synthetic oil into
one gallon of fresh gas.
This engine is certified to operate on unleaded
gasoline. Before operation, gasoline must be
mixed with a good quality synthetic 2-cycle
air-cooled engine oil designed to be mixed at a
ratio of 40:1. Poulan/Weed Eater brand
synthetic oil is recommended.Mix gasoline and
oil at a ratio of 40:1. A 40:1 ratio is obtained by
mixing 3.2 ounces (95ml) of oil with 1 gallon (4
liters) of unleaded gasoline. DO NOT USE
automotive oil or marine oil.

Jul 05, 2009 | Yard Machines Garden

Not finding what you are looking for?
Building Materials Logo

Related Topics:

1,982 people viewed this question

Ask a Question

Usually answered in minutes!

Top Building Materials Experts

hpgwva

Level 2 Expert

130 Answers

Tom Chichester

Level 3 Expert

34188 Answers

ray gallant

Level 3 Expert

43059 Answers

Are you a Building Material Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...