Search results
Results from the WOW.Com Content Network
In-situ evaluation of silane treated concrete cast using Zemdrain formwork liner at Dock street bridge, Belfast. Internal report to Du pont De Nemours, Luxembourg, Report No - TAS 139, June, 1992, p. 8, (Unpublished). Reddi, S.A. Permeable formwork for impermeable concrete. Indian Concrete Journal, January, 1992, pp. 31–35.
Formwork is used for the process of creating a mold into which concrete is poured and solidified. Traditional formwork is fabricated using wood, but it can employ steel, glass fibre, reinforced plastics and other materials. [3] Formwork for beams takes the form of a box that is supported and propped in the correct position and level.
The overall mass of concrete can be reduced by 35–50% depending on the design, [1] as a consequence of reduced slab mass, as well as lower requirements for vertical structure and foundations. Biaxial slabs commonly span up to 20 metres at a thickness of around 500 mm. [ citation needed ] The added strength also reduces the acoustic ...
IS: 1199 – methods of sampling and analysis of concrete. IS: 516BXB JWJJS– methods of test for strength of concrete. IS: 13311 – ultrasonic testing of concrete structures. IS: 4925 – specifications for concrete batching plant. IS: 3025 – tests on water samples; IS: 4990 – specifications for plywood formwork for concrete.
Logo of Eurocode 2 An example of a concrete structure. In the Eurocode series of European standards (EN) related to construction, Eurocode 2: Design of concrete structures (abbreviated EN 1992 or, informally, EC 2) specifies technical rules for the design of concrete, reinforced concrete and prestressed concrete structures, using the limit state design philosophy.
For removable forms, once the concrete has been poured into formwork and has set (or cured), the formwork is struck or stripped to expose the finished concrete. The time between pouring and stripping depends on the job specifications, which include the cure required, and whether the form is supporting any weight; it is usually at least 24 hours ...
Form liners are the liners used in the preparation of designs on concrete walls. The use of form liners often results in more attractive walls for highways, neighborhoods, beaches and parks. [ 1 ] Form liners come in many different shapes and designs, and can produce a variety of different results on concrete.
The first expanded polystyrene ICF Wall forms were developed in the late 1960s with the expiration of the original patent and the advent of modern foam plastics by BASF. [citation needed] Canadian contractor Werner Gregori filed the first patent for a foam concrete form in 1966 with a block "measuring 16 inches high by 48 inches long with a tongue-and-groove interlock, metal ties, and a waffle ...