Found inside â Page 55... use (best to use (best to use (best to sheepsfoot or sheepsfoot or 24/8 ton use 24/8 pneumatic pneumatic roller) ton roller) tyred roller) tyred roller) ... Found inside â Page 258Pneumatic Tyred Rollers The rubber tyred rollers are also known as Pneumatic Tyred Rollers (PTR). Their name is derived from the pneumatic (air filled) ... Found inside â Page 128... using heavier pneumatictractors or trucks , have been in use by the Board now for some time . tyred rollers on sprayed ... being carried out presents difficulties in turning the attractive replacement of the tractor - drawn pneumatic - tyred roller ... Found inside â Page 1365They are used in place of the steel transport wheel because of the reduction in rolling resistance , Pneumatic Tyred Roller . A towed roller carried on two ... Found inside â Page 612The GE compaction was carried out as follows: â RD 437 1 vibrating roller VT2 (4 passes) + 1 pneumatic-tyred roller (3 t/wheel â6 passes) â RD 10 1 VT2 (2 ... Found inside â Page 139Surveys conducted on the utilisation of compaction equipment show that the average annual hourly usage of these tools ... major breakthrough in the application of the pneumatic tyred roller came about when contractors discovered that more ... Found inside â Page 2Four wheels to fit 11 " axles , fitted with pneumatic tyres 16 " x 4 " and roller bearings . Two 3 ' X 11 " axles to fit above . One barrow wheel to take 1 ' axle , fitted 16 " x 4 " pneumatic tyre and roller bearings . Four barrow wheels to take 1 " axle ... Found inside â Page 533Poorly graded sands; Pneumatic-tyred roller below little or no fines 1500 kg per ... it may be preferable to use a vibratory roller Sheepsfoot rollers are ... Found inside â Page 121Smith noticed that fly ash was compacted by lorries running over it . Consequently , pneumatic - tyred rollers were included in the ... Found inside â Page 479In the early days the use of the vibrating roller was still in its infancy . ... later pneumatic tyred rollers improved overall compaction efficiency . Found inside â Page 12The use of a pneumatic - tyred roller at speeds of 5-8 mph on diaphragm and chip surfaces , has proved beneficial and most economical . The self - propelled pneumatic - tyred roller will , if chip spreading is done evenly and accurately , place ... Found inside â Page 1290The following compaction was carried out with two pneumatic tyred rollers , weight approximately 35 tons and 20 tons , respectively , corresponding to 5.0 ... Found inside â Page 129Pneumatic - eyred roller WGW 3000 ( Wilhelm Weller , works photo ) Butt - welding plant for rails , equipped with ... In addition to this he marketed the new pneumatic - tyred roller type WGW 3000 , a universal roller for compacting ... Manifold accessories for screwing on and for slipping in ensure a universal range of use . Found inside â Page 21For pneumatic - tyred rollers the mass per wheel is the total mass of the ... The requirements for vibratory rollers are based on the use of the lowest gear ... Found inside â Page 633... (by means of smooth metal rollers, sheepsfoot rollers or pneumatic tyred rollers) ⢠Application of tamping or dynamic energy (using pounders or rammers) ... Found inside â Page 324The types and application of dredgers is a one or two dozers pushing on a steel ... and double engine scrapers typically range Pneumatic - tyred rollers are ... Found inside â Page 584.6.2 Pneumatic-tyred Roller A common form of pneumatic-tyred rollers is shown ... They are rather unwieldy to use and function best where the surface to be ... Found inside â Page 342Typical compaction makes use of a tamping roller followed by a vibrating steel drum roller (at least 12 tonnes) or a large pneumatic tyred roller (>20 ... Found inside â Page 675Roller Compacted Concrete is a special dry concrete made of aggregates ... Compaction is assured by pneumatic - tyred rollers and finishing rollers . Found inside â Page 337Rollers Rolling techniques have been substantially improved by increasing use of pneumatic - tyred rollers ( Fig . 9.13 ) which secure the initial bond of ... Found inside â Page 36Water is sprinkled onto the rollers during use to ensure that the asphalt or ... Other compaction equipment The pneumatic - tyred roller has two sets of ... Found inside â Page 34... the use of spreading machines equipped with automatic level adjusting devices . ( 12 ) Although compaction practice is most variable with a predominance of the combined use of smooth steel wheeled rollers and pneumatic tyred rollers ... Found inside â Page 456The different types of rollers which are commonly used for the compaction of soils ... by provided either partly pneumatic or with fully numerous with tyred ... Found inside â Page 63materials tested by the R.R.L. , slightly higher densities than the rubber tyred roller ( inflation pressure 80 p.s.i. ) : hence it ... The authors would not expect any increase in density of heavy clays from the use of the 25 - ton pneumatic tyred roller ... Found inside â Page 23-10Other nations use Proctor or Modified Proctor (BS 1377: 1990 Part 4) ... followed by either a 2.5-tonne tandem vibrating roller or a pneumatic tyred roller ... Found inside â Page 827R loose Aa rubbersoiljs and o n s P u Fig.b lic Fig. 37.14 Pneumatic Tyred Roller The chasis of roller is fitted with rubber-tyred wheels which produce the ... Found inside â Page 281Pneumatic- tyred roller over 2000 kg per wheel. ... moisture content is low it may be preferable to use a vibratory roller Tamping (sheepsfoot) rollers are ... Found inside â Page 638The individual rollers are typically two metres wide, requiring two passes of ... passes of a smooth roller, followed by a pneumatic-tyred roller (c below). Found inside â Page 45513.2.5 Rollers Four types of rollers are described here, namely the smooth-wheeled rollers, pneumatic-tyred rollers, sheepfoot rollers, and vibratory ... Found inside â Page 257Pneumatic tyred rollers Acting as dead weight rollers and capable ( via ... in order to minimize pick - up and the necessity to use lubricants on the tyre ... Found inside â Page 114... Well-graded gravel/sand mixtures Pneumatic-tyred roller over 2000 kg type ... sands Smooth-wheeled roller depending on depending on prefrable to use a ... Found inside â Page 1In a more recent investigation a 20 - ton roller having a wheel load of 2.2 tons and a tyre - inflation pressure of 80 lb / sq . in . was also studied . In view of the growing use of much heavier pneumatic - tyred rollers , however , it was decided to ... Found inside â Page 299Finish rolling may also increase the density of the mat especially if the ... It is common practice in many countries to use pneumatic - tyred rollers to ... Found inside â Page 15For pneumatic - tyred rollers the mass per wheel is the total mass of the ... The requirements for vibratory rollers are based on the use of the lowest ... Found inside â Page 172... and unburnt Smooth wheeled rollers or colliery shale Self-propelled tamping rollers ⢠Pulverised fuel ash Pneumatic tyred rollers for ⢠Broken concrete, ... Found inside â Page 305... when the moisture content is relatively high it is preferable to use a pneumatic-tyred roller Uniform Sands with little | SU 1760 or no fines ... Found inside â Page 417Their main application lies in compaction of backfill and bed in trenches for ... Broken concrete, brick (burnt Vibratory roller, Pneumatic-tyred roller and ... Found inside â Page 314... Type Notes on use Rollers Smooth-wheeled Pneumatic-tyred Grid Tamping Construction traffic Mass range from 1.7 to 17 tonnes deadweight without ballast. Found inside â Page 854.5.2 Pneumatic-Tyred Rollers In these rollers, wheels are placed close together on two axles and placed such that the rear set of wheels overlap the lines ... Found inside â Page 47Initial compaction was carried out with a flat steel roller , followed by a vibratory roller and a pneumatic - tyred roller ( 33 t ) . A heavier pneumatictyred roller ( 80 t ) was used for obtaining final compaction . Certain lengths in the ... The application rate was checked prior to mixing the additive into the gravel . The initial mixing ... Found inside â Page 421Pneumatic tyred rollers consist of a box mounted over two axles, the rear axle having one more wheel than the front and the wheels of the front axles so ... Found inside â Page 433Pneumatic-tyred roller In its usual form the pneumatic-tyred roller is a container ... Their use in the UK is rather infrequent because of the generally wet ... Found inside â Page 168IS: 2720 (Part VIII)- 1965 recommends the use of 4.89 kg rammer with a drop of ... The pneumatic tyred rollers range in size from the smaller wobble wheel ... Found inside â Page 134Rubber - tyred rollers compact faster due to higher speed ( 5-7 km h-- if pulled by crawler tractors and up to 13 km h-- when pulled by a pneumatic - tyred ... Found inside â Page 23-10Other nations use Proctor or Modified Proctor (BS 1377: 1990 Part 4) ... followed by either a 2.5-tonne tandem vibrating roller or a pneumatic tyred roller ... Found inside â Page 53... pneumatic - tyred roller ( BrE ) ; - de neumáticos f CONST rubber - tyred ... delay aplicación f INFORM & PD , MECà application ; - de un acabado nuevo ... Found inside â Page 128Pneumatic - tyred rollers ballasted to five or six tons , drawn by tractors or trucks , have been in use by the Board now for some time . While there could be some advantage in using heavier pneumaticFig . 5. â Rotating Belt Spreader Carrier ... Found inside â Page 188Sections 16 and 17 which were to be surface dressed were rolled with a 13 Mg pneumatic - tyred roller in addition to the steel ... The binder and its application The binder was a Grade A 42 tar supplied by the London Tar and Chemical Co. Type WGW 3000, a universal range of use `` pneumatic tyre and roller bearings X ``! Rollers ( PTR ) axles to fit above kg per wheel rate was checked prior to mixing the additive the! 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