what is the difference between concrete and mortar?

Answer 1

Mortar is always a softer more degradable material than the bricks or stones that it bonds together. This is so that the stress taken by the building, as groundsoil shifts slightly, will be absorbed by the mortar and not by the bricks and stones themselves which might crack.

Cracked or crumbling mortar can be replaced less expensively than replacing whole bricks, stones.

If you look at old building walls you will see replacement mortar lines running up and down, sometimes up-across-up again, where the original mortar weakened or cracked so it had to be replaced. A good mortaring job will match the colour of the original so it will be harder to detect. New mortar in a different colour will stand out.

Answer 2

Mortar and cement are basically the same except for different proportions of sand. Cement usually has less sand than mortar, which is why it looks smoother. Concrete is cement with lots of sand and some type of what they call aggregate; this could be gravel, metal pieces, ball bearings or anything else to expand the bonding surface area inside the mix. Also, concrete almost always have rebar in it except in very small applications. An interesting note: The acients Greeks and Romans used hollow clay pots as an aggregate. This caused it to have great strength at a fraction of the weight. Most of their greatest architectural/engineering feats using this method are still standing today and have become the basis of modern engineering, especially in domes where weight vs. support is crucial.

Answer 3

Concrete is the mix of sand, gravel and cement to produce a sidewalk or foundation; mortar is a mix of lime, cement and sand to hold bricks or stones together. So concrete can stand on its own; mortar is a component of a finished product.

Answer 4

concrete is made from sand cement and pebbles and is very strong when set while mortar is made from only sand and cement and is used to bond bricks together (and keep them apart) there is not a lot of strength in mortar.

;) H

Answer 5

concrete has stone in it. mortar is just cement and sand.

Answer 6

concrete has larger sand and rocks in it, mortar has only some fine sand in it.

Answer 7

concrete= cement + water + fli-ash + aggregate( stone)......used in a structural applications such as footers and driveways.......

mortar= cement + lime....u add the water and sand..14 shovel fulls to the bag......used in structural applications ( type S) brick laying and block laying......used in non structural applications,( type N ) such as stucco and filling the joints on stone work.....

lic. gen. contractor

Answer 8

Concrete has chips in it for one to make it harder.