Search results
Results from the WOW.Com Content Network
The first nine blocks in the solution to the single-wide block-stacking problem with the overhangs indicated. In statics, the block-stacking problem (sometimes known as The Leaning Tower of Lire (Johnson 1955), also the book-stacking problem, or a number of other similar terms) is a puzzle concerning the stacking of blocks at the edge of a table.
ICF walls are conventionally placed on a monolithic slab with embedded rebar dowels connecting the walls to the foundation. ICF decking is becoming an increasingly popular addition to general ICF wall construction. ICF decking weighs up to 40% less than standard concrete flooring and provides superior insulation.
To install a caisson in place, it is brought down through soft mud until a suitable foundation material is encountered. While bedrock is preferred, a stable, hard mud is sometimes used when bedrock is too deep. The four main types of caisson are box caisson, open caisson, pneumatic caisson and monolithic caisson. [5]
Frieze slab: 0.5 ~ 610–590 BC Sounion Kouros [5] Sounion, Greek mainland: Figure ~2 ~ 610–590 BC Colossus of the Naxians [5] Delos, Greek isles: Base 34 ~ 610–590 BC Colossus of the Naxians [5] Delos, Greek isles: Figure ~23 ~ 590–580 BC Temple of Artemis [5] Kerkyra, Greek isles: Pediment slab, central 3.25 ~ 590–580 BC Temple of ...
Monolith with bull, fox, and crane in low relief at Göbekli Tepe. The density of most stone is between 2 and 3 tons per cubic meter. Basalt weighs about 2.8 to 3.0 tons per cubic meter; granite averages about 2.75 metric tons per cubic meter; limestone, 2.7 metric tons per cubic meter; sandstone or marble, 2.5 tons per cubic meter.
The engineering problems involved were chiefly to do with the transport of blocks, sometimes over long distances, their movement into location and exact alignment. It is now generally agreed that the skilled building workers were respected and well treated, but undoubtedly very large numbers of labourers were necessary to provide the brute force.
Lift slab construction (also called the Youtz-Slick Method) is a method of constructing concrete buildings by casting the floor or roof slab on top of the previous slab and then raising (jacking) the slab up with hydraulic jacks. This method of construction allows for a large portion of the work to be completed at ground level, negating the ...
Sulfates dissolved by ground moisture migrate into the concrete of the slab where they react with different mineral phases of the hardened cement paste. The attack arises from soils containing SO 2− 4 ions, such as MgSO 4 or Na 2 SO 4 soluble and hygroscopic salts.