Concrete Cutting Core Drilling Lebanon ME Maine

Welcome to MaineConcreteCutting.com

“We Specialize in Cutting Doorways and Windows in Concrete Foundations”

Are You in Lebanon Maine? Do You Need Concrete Cutting?

We Are Your Local Concrete Cutter

Call 207-284-0788

We Service Lebanon, ME and all surrounding Cities & Towns

The following table will enable you to figure the quantities of each material needed for any job, by adding together or multiplying the quantities in the table corresponding to the volumes in the first columns. The first column shows the quantity of concrete. The other five divisions show the different concrete mixtures and quantities of material under each concrete mixture needed to produce the quantity of concrete given in the first section. 1:1%:3Concrete mixture1:2:3Concrete mixture1:2:4Concrete mixture. To figure out how many cubic feet there are in a job, write down the dimensions, all in feet or fractions of feet, so that the result will be in cubic feet. To find the number of cubic feet in a pavement 30 ft. long, 4 ft. wide and 4 in. thick, write the last dimension in feet, calling it 4/12 or 113 ft. Then multiply 30x4xl/3 and the answer will be 40 cu. ft. Look in the table under the concrete mixture you are going to use. Take the quantities there for your job. Example: If you want to know the materials for 291 cu. ft. of 1-2-4 concrete mixture, copy out the figures for 100 cu. ft. and multiply them by 2, to make 200. You will have 44 bags of cement, 88 cu. ft. of sand and 176 cu. ft. of stone. Then look under the same head, opposite 90 cu. ft.: 19 4/5-bags of cement, 39 3/5 cu. ft. of sand and 79 1/5 cu. ft. of stone. Then look opposite 1 cu. ft. and you find 7/32 bags of cement, 7/16 cu. ft. of sand and 8 cu. ft. of stone. Adding these three results you will find 291 Cu. ft. of concrete in a 1-2-4 concrete mixture will require 64 bags of cement, 128 cu. ft. of sand and 256 cu. ft. of stone or gravel. For a concrete wall, slab or a roof, you will find it easy to calculate the total cubic feet of concrete if you will just remember that you must multiply together the three different dimensions, all expressed in feet or fractions of feet.

 A complete test of all the possible stresses which might be produced under this condition would be long and tedious; but we may make a first trial of it by finding the stresses which would be produced by placing the road roller at one of the quarter-points of the concrete arch—a position which would test the concrete arch almost, if not quite, severely as any other possible position. Owing to the very considerable thickness of earth fill, as well as the effect of the pavement, the load of the roller is distributed in a very much unknown and very uncertain fashion over a considerable area of the haunch of the concrete arch. The extreme width of such a roller is eight feet; the weight on each of the rear wheels is approximately 12,000 pounds. We shall assume that the weight of each rear wheel is distributed over a width of three feet and a length of four feet, so that the load on the top of the concrete arch under one of the wheels may be considered at the rate of 1,000 pounds per square foot over an area of 12 square feet. For the unit-section of the concrete arch one foot wide, this means a load of 4,000 pounds loaded on two concrete which are four feet in total length. The front roller of the road roller comes between the two rear rollers, and therefore would affect but little, if any, the particular concrete arch ring which we are testing. Not only is it improbable that there would be a full loading of the concrete arch simultaneously with that of a road roller, but it is also true that a full loading would add to the stability of the concrete arch. Yet, in order to make the worst possible condition, we shall assume that the part of the concrete arch which has the road roller is also loaded for the remainder of its length with a maximum load of 200 pounds per square foot; this item alone will take care of the effect of the front roller. A load of 1,000 pounds per square foot is the equivalent of a loading of 6 feet 3 inches of stone; and therefore, if we draw over concrete Nos. 3 and 4 a parallelogram having a vertical height above the dead-load line equal to 6 feet 3 inches of stone, and consider a reduced live-load line 15 inches deep over the remainder of that half-span, we have the reduced load line for the third condition of loading.

Are You in Lebanon Maine? Do You Need Concrete Cutting?

We Are Your Local Concrete Cutter

Call 207-284-0788

We Service Lebanon, ME and all surrounding Cities & Towns