Just give a few blows to the slab with a hammer of 12 pounds. (Photo 1) In 10 minutes, you will know if it is a job for a train or a hammer. Consider renting an electric hammer to make the job easier.

If you use a concrete that has a quick adjustment additive, you have to expect a minimum of a sunny day, if you use a standard concrete base mixture would recommend waiting a minimum of seven days and a maximum of 28 days, of course, that is, if the conditions are good for the concrete to heal and put hard.

One can expect a concrete retaining wall to last 50 to 100 years. Meanwhile, one can expect a brick masonry wall to last at least 100 years, although the quality of the work plays a role here.

Post-burn sequelae include hypertrophy of healing, skin fragility and itching. They occur more frequently when healing is delayed for more than 3 weeks, because total thickness burns, which are common in cement burns, are not treated by secondary intent.

The Establishment of the Research of the Construction estimates that the natural section on one side will take approximately one month per inch of depth. Thus, if its concrete plate is 100 mm (4 inch) thick, it could take four months to dry completely.