Normally you have to cut them off with a grinder. A grinder with a metal cutting blade will allow you to take them down flush with the concrete. Wear eye protection though it does throw lots of sparks and some concrete.
with a hammer and chisel
Yes, but the walls of the hole may contaminate the cement. Mixing the cement may be very hard, and precarious. Further, you may not be able to remove all the cement from the hold afterwards. It is more advisable to use a cement-mixer.
Use petrol or paint tinner...
No, you don't use drywall anchors if you can use a stud.
Cement paste is formed when cement is mixed with water. However, cement mortar is formed when cement is mixed with fine aggregate (sand) and water.The strength of cement mortar is more when compared to cement paste.Shrinkage will be less in cement mortar and high in cement paste.
remove it buy washing with oil
with a chisel?
Two styles of anchors are heavy and light anchors. Types of anchors are as follows: Danforth anchors, plow anchors, spade anchors, Delta anchors, claw anchors, mushroom anchors, and navy anchors.
You don't do that. Just give me half of what you are going to hide there and I will build you a reinforced cement vault wall.
cut it out of the clothing
you put a can of beans in it
Epcon chemical anchors have a 4 hour fire rating unlike others.
Remove the firing pin from the rear and the locking bolt will side out the side of the bolt
wet a rag pour a can of coke on it and then rub it on the cement. then get a stiff wire brush and then rrub it against the cement
If the cement is not too old, try water and a soft scrub brush.
Remove and replace it.
with a hammer and chisel