Kristina's World of Concrete Part 2: TamiSoft by Autom'elec
April 22, 2015
Kristina takes a look at the TamiSoft machine which offers granular measurement of aggregate chunks. The system triangulates Laser beams reflected off the aggregate into a camera, which records up to 1000 measurements per second.
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Warm mix asphalt can save energy and the environment, cutting emissions of carbon dioxide and other harmful gases, but are environmental arguments enough for clients and contractors? Kristina Smith asks Though popular in the United States, warm mix asphalt is still a technology waiting to happen in the rest of the world. Chemical companies who imagined a meteoric rise in sales are still waiting for the right economic conditions to allow warm mix to start taking serious market share from hot mix. “In Europe
INO, a world-class centre of expertise in industrial applications for optics and photonics, offers its laser rut easurement system (LRMS), a transverse profiling device that detects and characterises pavement rutting. The organisation says LRMS can acquire full 4m width profiles of a highway lane at normal traffic speeds (up to 100km/hr), using two laser profilers that digitise transverse sections of the pavement.
Soil stabilisation offers a cost effective solution for road construction in the right conditions Ensuring the soil underneath the aggregate base of a road has been stabilised with cement, lime or fly-ash can provide a greater working life and a reduced risk of problems that can arise as the road ages, such as subsidence. The technology works particularly well in ground with high clay content and where there are local shortages of stone for use in aggregates. Reducing the need for aggregates where they are
Preservation can make roads perform better and last longer - and save money in the long run. Kristina Smith reports
BAM Wegen has laid the first ever half-warm porous asphalt section on a major highway in the Netherlands. The asphalt for the 500m-long test section on the A18 near Varsseveld was produced at 105°C rather than 160°C, representing a saving on energy and CO2 emissions of around 30%.
