concrete construction equipment developments1
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Recent Developments in Concrete EquipmentsTRANSCRIPT
Concrete Construction Equipment Recent Developments
Concrete Construction EquipmentRecent DevelopmentsConcrete Construction EquipmentRecent DevelopmentsTill about 1960 hardly any construction equipment was in vogue except tilting drum mixers and elementary hoistsOver the last five decades, in line with international developments, India has caught up with the developed world in respect of concrete construction equipment A fair degree of automation has been introduced On a typical major project it is common to use batching plants, concrete pumps, truck mixers etc
Concrete Constrn Equipment in India Sand CrusherAggregate handling at Site
Expensive SolutionsJCBTerex loaderEconomical SolutionAgricultural tractor fitted with bucketConcrete Producing Equipment
Automatic Cement Bag Emptying Machine
Concrete Mixers With Weigh Batching
Computerized Mini Batching Plant
SAR 05 Y2kMobile Concrete PlacerRange 18m Horiz & 6m VerticalTypes of Mixers Free fall Mixers - Mixing time 2 minutes - tilting drum- non-tilting drum- reversing drum Forced action mixers - Mixing time 30 secondsPan MixersHorizontal Single Shaft Mixers -do- Twin Shaft Mixers
Forced Action Mixer Types Twin Shaft MixerSingle Shaft MixerPan Mixer
Mobile Batching Plant
With Star Bins
With linear binsBatching Plants - ConfigurationsSmartMix Plants arrive on site pre-wired, pre-plumbed and factory tested.
Containerised Concrete Batching PlantReduced transportation costs, short erection times, elimination of concrete foundationsTwo modules -the twin shaft mixer & control cabin are both housed in 20-ft. sea containersCan handle 240 cum/h loadAble to mix two different recipes at the same timeCan handle maximum aggregate size of 45mmFull operator station
Containerised Concrete Batching Plant
Batching Plant - Mixer Mind Electronic software for batching plantsChecks slump continuously by monitoring power consumption & adjusts slumpSensors monitor temperature, pressure, condition of motors, gear Boxes, lubricating SystemSensors placed on the mixer, connected to control cabin. Alarm goes off whenever preset min or max value is exceeded Timers pre-warn maintenance demand, Reduces maintenance time & cost, prolongs life
Sand Moisture ProbeThe probe can be installed and calibrated in a matter of hours The probe is installed at the entrance of the sand bin of the batching plantInstalled and calibrated in a matter of hours
Mobile Batch Plant Commissioned in Four Hrs (Universal, Pune)
Mobile Mixing UnitsQuickly moved, transported on low-bed semi-trailers and quickly set up again, thanks to the fully installed, pre-assembled compact units
Batch Plant on TrailerTender For 23 Bridges in NepalMajority Bidders Quoted With Six 30 cum Batch Plts; yours Truly Quoted With One Trailer Mounted 15cum B Plant, Quoted L1, Won the Contract, Completed on TimeAs Batch Plant Was Mobile, It Was Towed To Various Bridges As Required, No Need For Truck Mixers, Concrete Directly PumpedSkid Mounted Batch PlantNo Foundation Required
9 Cum Portable Batch Plant4.5m. discharge height, 180 truck accessReady for Operation in 4 Hours after arrival at site
Batch Plant With Inline BinsBatch Plant Accessories -Flake Ice Plant
Shortens melting times while batchingProduces flake ice by spraying water onto a refrigerated drum
Batching Plant - Mixer Mind Electronic software for batching plantsChecks slump continuously by monitoring power consumption and adjusts to required level Sensors monitor temperature, pressure, condition of motors, gear boxes & lubricating systemSensors placed on the mixer, connected to control cabin. Alarm goes off whenever preset minimum or maximum value is exceeded Service timers pre-warn maintenance requirementReduces maintenance time & cost, prolongs lifeUsed at Kaiga Atomic Power Project, Karnataka
Wet Batching Plant
Vertical Batching Plant- Congested SpacesIS 456 : 2000 Cl. 10 Batching Tolerances 10.2 Batching To avoid confusion, use smallest practical number of mixes Cement batching by bags deleted .RMC preferred 10.2.2 Weighing accuracy : Cement 2 %Aggregates, Admixture, Water 3 % 10.2.3 Proportion / type and grading of aggregates shall be made by trial
Batch PlantsConcrete Quality Control Modern Plants have computerized controls for setting different mixes or adjusting mixes which generate records of the product inputs relative to specification requirements Also equipped with Mixer Minder Software. A watt meter connected to the mixer drum motor measures the power needed to turn the drum giving an immediate indication of workability; the drier the mix, the more power needed & vice versa Used in preventing discharge of misbatched conc
Cement BulkerSilos 50 - 500 t
Separate silos for different grades of cement, flyash, GGBS Moisture proof, with de-aerator filters, vibrator pads at the bottom, dust collector / exhauster
Computerized mini batching plant