Brandon keep giving GOOD VIBRATIONS - Brandon Tool Hire
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Brandon keep giving GOOD VIBRATIONS The application of vibration by mechanical means is a long recognised method of improving the structural integrity of mass poured concrete. Wacker IRFUN’S effec- tiveness it is worth considering the following rule of thumb which says the effective compaction area of conventional flexible shaft type pokers in concrete is: 10 times the diameter of the head e.g. a 57mm poker will have a compaction area of 570mm. However The Wacker IRFUN shaft less motor in the head poker with a 57mm head produces a compaction area of up to 850mm, due to the high centrifugal forces and maintained optimum frequency. In addition the Wacker IRFUN has no flexible shaft to get damaged and carries a major health and safety benefit in the exceptionally low hand arm vibration readings, as low as 2.5m/second squared, allowing usage of up to 10 hours, according to the HSE recommen- dations. These benefits have been enjoyed The simplest known methods of applying vibration go right back to Roman times when moulds containing rudimentary concrete were tapped with sticks to remove pockets of air. Moving on a century or two we arrive at the post war era when the use of powered concrete pokers become more commonplace with the increased demand for high quality concrete, especially where traditional building methods were being replaced by the development of high rise construction. Here the choice lay mainly with petrol and diesel driven power units coupled to flexible shafts or with air powered models driven by compressors. Further developments took place during the sixties and seventies with the introduction of electrically powered pokers giving much greater flexibility. In recent years, further developments have taken place with Brandon Tool Hire not only supplying a complete range of Vibrating Pokers powered by electric and petrol motors driving flexible shafts, but now leading the way with the sensational Wacker IRFUN range of “shaft less- motor in the head” electric poker. It has long been regarded that the optimum frequency (number of vibrations achieved when the poker is inserted into the concrete) is ■ Vibration gives greater density. ■ Compressive strength is increased by the removal of entrapped air. ■ It improves bonding with reinforcing steel and at construction joints. ■ Ensures greater durability and a smoother finish. ■ Reduces incidence of honey-combing and surface air voids Wacker IRFUN Poker Why Vibrate? COMPACTION AREAS VIBRATING POKERS TECH SPEC Ideal for form work and interior work. Diagram of comparable compaction areas between Wacker IRFUN high frequency, motor in the head and standard Pokers IRFUN 57 ■ Vibrator head diameter 57mm ■ Vibrator head length 400mm ■ Vibrator head weight 5.8kg ■ Total operating weight 19.8kg ■ Effective compaction up to 85 cm ■ Vibrations approx 12000pm ■ Mains rating 1.3kVA Effective area of compacting for IRFUN 57 =85cm Effective area of compacting for standard Poker =57cm 12,000vibrations per minute. The high performance achieved by the Wacker IRFUN pokers is due to that frequency being maintained not only in air but also when inserted into the concrete. This integrity of performance and subsequent increase in centrifugal force creates a much higher quality concrete. In direct contrast, the conven- tional flexible shaft poker loses up to 40% of its frequency and subsequent performance when inserted into concrete. As a further measure of the over the last year by many companies including one of Brandon’s major customers; Carillion, the main contractor at the Devonport Dockyard in Plymouth. They have used the Wacker IRFUN pokers extensively throughout this project with Brandon Tool Hire supplying through it’s on site store. The Brandon Tool Hire network now features a concrete specialist in every one of its ten areas who can supply on site advice, training and demonstrations of the benefits of the entire range of concreting products. Simply call 08705143391 and ask for your local Brandon concrete specialist! BRANDON TOOL HIRE
Transcript of Brandon keep giving GOOD VIBRATIONS - Brandon Tool Hire
Brandon keep giving GOOD VIBRATIONSThe application of vibration by mechanical means is a
long recognised method of improving the structural
integrity of mass poured concrete.
Wacker IRFUN’S effec-tiveness it is worthconsidering the following rule ofthumb which says the effectivecompaction area of conventionalflexible shaft type pokers in concrete is:10 times the diameter of the heade.g. a 57mm poker will have acompaction area of 570mm.
However The Wacker IRFUN shaftless motor in the head poker with a57mm head produces a compactionarea of up to 850mm, due to the highcentrifugal forces and maintainedoptimum frequency.In addition the Wacker IRFUN has noflexible shaft to get damaged andcarries a major health and safetybenefit in the exceptionally lowhand arm vibration readings, aslow as 2.5m/second squared,allowing usage of up to 10 hours,according to the HSE recommen-dations.
These benefits have been enjoyed
The simplest known methods ofapplying vibration go right back toRoman times when moulds containingrudimentary concrete were tappedwith sticks to remove pockets of air.
Moving on a century or two wearrive at the post war era when theuse of powered concrete pokersbecome more commonplace with theincreased demand for high qualityconcrete, especially where traditionalbuilding methods were being replacedby the development of high riseconstruction.
Here the choice lay mainly withpetrol and diesel driven power unitscoupled to flexible shafts or with airpowered models driven bycompressors.
Further developments took placeduring the sixties and seventies withthe introduction of electricallypowered pokers giving much greaterflexibility. In recent years, further developmentshave taken place with Brandon ToolHire not only supplying acomplete range of VibratingPokers powered byelectric and petrolmotors drivingflexible shafts, butnow leading the way with thesensational Wacker IRFUN range of“shaft less- motor in the head”electric poker.It has long been regarded that the
optimum frequency (number ofvibrations achieved when the poker isinserted into the concrete) is
■ Vibration gives greater density.
■ Compressive strength is increased by the removal of entrapped air.
■ It improves bonding with reinforcing steel and atconstruction joints.
■ Ensures greater durability and a smoother finish.
■ Reduces incidence of honey-combing and surface air voids
WackerIRFUN Poker
Why Vibrate?
COMPACTION AREAS
VIBRATING POKERS
TECH SPEC
Ideal for form work and interior work.
Diagram of comparable compaction areasbetween Wacker IRFUN high frequency,motor in the head and standard Pokers
IRFUN 57■ Vibrator head diameter 57mm■ Vibrator head length 400mm■ Vibrator head weight 5.8kg■ Total operating weight 19.8kg■ Effective compaction up to 85 cm■ Vibrations approx 12000pm■ Mains rating 1.3kVA
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa a aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa a aaaaaaaaaaa a aa aaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa a aaaaaaaaaaaa a a aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa a aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa a aEffective area ofcompacting forIRFUN 57 =85cm
Effective area ofcompacting for
standard Poker =57cm
12,000vibrations per minute.The high performance achieved
by the Wacker IRFUN pokers is due tothat frequency being maintained notonly in air but also when inserted intothe concrete.
This integrity of performance andsubsequent increase in centrifugalforce creates a much higher qualityconcrete.
In direct contrast, the conven-tional flexible shaft poker loses up to40% of its frequency and subsequentperformance when inserted intoconcrete.
As a further measure of the
over the last year by many companiesincluding one of Brandon’s majorcustomers; Carillion, the main contractorat the Devonport Dockyard in Plymouth.They have used the Wacker IRFUN pokersextensively throughout this project withBrandon Tool Hire supplying through it’son site store.
The Brandon Tool Hire network nowfeatures a concrete specialist in every oneof its ten areas who can supply on siteadvice, training and demonstrations ofthe benefits of the entire range ofconcreting products.
Simply call 08705143391 andask for your local Brandon
concrete specialist!
BRANDON TOOL HIRE
