ISO 11375 pdf download.Building construction machinery and equipment — Terms and definitions
1 Scope
This International Standard specifies terminology for machines and equipment used in the building construction industry, for ease for reference and for use in discussions on standardization activities. This International Standard refers to machines and equipment used on construction sites. They are divided into five groups: — assembly of machines and components for installation and extraction of piles; — equipment for preparing, conveying and compaction of concrete, mortar and processing reinforcement and formwork; — machinery and equipment for aggregate processing; — equipment for finishing work and maintenance; — machinery and equipment for general use in construction processes. The machinery and equipment presented in these particular groups are used primarily in building processes. This International Standard does not include groups of building machines such as earth-moving machinery, cranes, lifting and access machinery.
2.1.2.3 Stationary concrete batching plant Concrete mix batching plant without capability for relocation. See figures 21 and 22. 2.1.2.4 Transferable con- crete batching plant A plant for proportioning concrete mix con- stituents, capable of relocation by stripping for transportation and reassembling. See figures 21 and 22. 2.1.3 Concrete mixers Machines designed for the production of con- crete by mixing of measured (by mass or vol- ume) proportions of water, cement, aggregate and possibly chemical additives, within a cer- tain time limit. NOTE — A concrete mixer may be furnished with the following accessories: charging skip hoist, fixed or wheeled supporting frame, mechanical shovel, water dosing equipment, and a skip weighing sys- tem. See figures 23 to 27. 2.1.3.1 Batch-type concrete mixer Mixer in which charging with concrete con- stituents and discharging of the drum are car- ried out periodically, in batches. See figures 24 to 27. 2.1.3.2 Continuous-type concrete mixer Mixer in which charging with concrete con- stituents and discharging of the drum are car- ried out continuously as an uninterrupted flow. Figure 23 2.1.3.3 Gravity concrete mixer (Free-fall con- crete mixer) Machine where mixing is effected by repeat- edly elevating the mixed concrete and drop- ping it from a certain height, inside a mixing drum, during its rotation.
2.1.3.3.1 Reversing (drum) concrete mixer Gravity mixer with a reversible direction of ro- tation of the mixing drum; discharge of mixed concrete is by reversing the rotation of the drum. Figure 24 2.1.3.3.2 Tipping drum con- crete mixer Free-fall mixer with a tipping mixing drum, open at one end for charging and discharging of the concrete mix; discharging is carried out by tilting the drum. Figure 25 2.1.3.3.3 Discharging chute concrete mixer Free-fall mixer, with a mixing drum open at both sides; charging is carried out from one side and discharging from the other by means of a chute entering the drum. Figure 26 2.1.3.4 Compulsory con- crete mixer Machine with mixing effected by the action of one or more agitators moving inside a mixing chamber with either a vertical (pan) or horizon- tal axis (trough). NOTE — The illustrations of individual compulsory mixer types shown in figures 28 to 34 depict the pattern movement of the agitators. Figure 27 2.1.3.4.1 Turbo concrete mixer Compulsory concrete mixer with an agitator rotating about the vertical axis of a stationary pan, charged from the top and discharged by opening a segment of the pan bottom.
2.1.3.4.2 Planetary concrete mixer Compulsory mixer with vertically mounted agitators having a planetary type of motion, inside a stationary pan; the mixer is charged from the top, and discharged by opening a segment of the pan bottom. Figure 29 2.1.3.4.3 Turbo planetary concrete mixer Compulsory mixer having one agitator rotating about the vertical axis of a stationary pan in addition to other agitators in planetary motion; the mixer is charged from the top and dis- charged by opening a segment of the pan bottom. Figure 30 2.1.3.4.4 Counter-current operation concrete mixer Forced-action mixer with one or more agitators rotating about the vertical axes in a counter- rotating pan; the mixer is charged from the top and discharged by opening a segment of the pan bottom.