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Black spots are not made on the buildings but when buildings get older and in cases when the walls are not built straight due to loads cracks are generated on the walls and to control or to reduce the propagation of cracks special cementing material is applied externally to fill the cracks and mostly due to its black color it seems that black spots are made on the building but it is merely due to yhe repair work.
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∙ 12y ago
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How much does the construction and maintenance of the average building cost?
It truly depends on the size of the building, where it is located, how old it is, etc. If it is a work site building, the costs are going to be higher than a building used for a home.
What is an earthen drain?
A drain made of clay sections pushed together. Old septic pipes were often made this way.
How are explosives used in building?
They are used to demolish old unsafe buildings. They are also used in quarrying (open cast) to provide easier access to the minerals being mined.
What do builders use to knock down buildings?
It depends on the type of building, if you want to save any of the materials, and what tools you have available. - I have knocked down old buildings by hand, with hammer and crowbars to preserve old bricks, stonework and fine woodwork, -on the other hand if it was a cheaply built structure with nothing special about it, an excavator or back-hoe could simply crush it and put all the pieces in a demolition bin.
What is the use of cantilevers in construction?
: I would consider the most common use for cantilever beams to be in building construction.....and probably the most obvious example is in mediaeval buildings with a framework of oak beams . Everyone must have seen these old buildings where the upper stories are wider than the ground floor , very common in Europe . The ceiling beams for the ground floor (also the floor beams for the upstairs rooms)are arranged to project out through the walls by 10-18 inches (30-45cm) , and the wall structure for the upper stories is built apon the projecting ends . This allows a larger open space to be achieved in the ground floor rooms without annoying support pillars because the weight is partly offset by the weight of the upper stories acting as a counter balance . This technique has been described as a way to avoid the tax on the building 'footprint', but this is not true in all countries where it was adopted , the tax merely prompted a wider acceptance of the technique . The same building tricks are used on modern buildings and bridges , but are not always obvious or visible when the structure is completed .
Why do some food get black spots when old?
because when it is old and has black spots if you eat it you will get food pouison and will sometimes die.But the rison it has black spots on it is that it means that it has been in the fridg to long.
Does old sperm change to black spots in your panties?
No, crabs.
Is there a black roach with white spots?
yes but mine has black zeros on it*<=-)
How come all of a sudden my 9 month old golden retriever puppy has developed 3 or 4 dime sized black spots on her otherwise pink tongue?
if what your calling "black spots" are actually more of a purple color it could mean that they have some chow chow in them i know chows have purple on their tongue and i have heard something of an old wifes tale that a dog with a purple tongue is a very smart dog Golden retrievers are known to have black spots. This does not mean that your dog is mixed by any means. Google black spots and goldies. you will see that there have been AKC champions that have had black spots.
What is the shape of a ladybug?
Ladybugs are either red or orange with black spots. The spots tell you how old the ladybug is. If a ladybug doesn't have any spots, you know that the ladybug hasn't turned a year old yet! Make sure you don't forget ash grey ladybugs, which have white shells and have yellow bodies. Remember, all ladybugs have black spots. This means that the ash grey ladybug has black spots!
Can Dalmatians be other colors than white and black?
Dalmatian puppies are born pure white. Within a few weeks there spots start to appear. There spots can be black, brown or liver coloured. The most popular being black, then brown, then liver. It is farely rare to have liver coloured spots.
Does a spotted dog get more spots as it ages?
They do until they get to 5 years old then they stop
How old can a ladybird get?
you can tell how old a ladybird is by how many spots it has :for esample if a ladybird has 3 spots it is 3 years old
Can Jack Russells have spots on their skin?
Yes that is, small brown spots will appear on a JRT stomach as they mature, and as they continue to grow they will get small black or brown dots on their back or legs.
What types of pigs are used to make bacon?
the large black is used as a dual purpose ,domestic pigs are used for pork and old black spots are used for bacon
What does 'stands on the site' mean?
If there was an old building that was demolished and a new building was built where the old building was then the new building "stands on the site" of the old building.
What is the oldest building in the oldest city?
The oldest man made building is the 4,600 year old tomb of King Zoser, in Sakkara, Egypt.
