There’s nothing better than a big glass of water filled with ice on a hot summer day. Concrete may feel the same way, also.
Weather is one of the most important factors during any concrete placement and when placed in hot weather, quality can be greatly diminished if the proper precautions are not taken. The Portland Cement Association estimates that, for every 20 degrees Fahrenheit of increased ambient temperature, the curing time of concrete can be reduced by as much as half. This decreased amount of work-ability time can put stress on a crew to complete the finishing work before it hardens and increase the risk of cracking. The PCA also suggests that steps be taken to reduce hot weather effects when ambient temperatures rise above 77 degrees Fahrenheit and especially after temperatures reach 90 degrees.
One way crews are keeping the temperature of their concrete cooler on hot days is to use ice. In fact, construction crews are using so much ice in Charlotte, North Carolina, that it’s becoming local business Zippy Ice’s fastest growing sector, as well as their highest source of revenue, according to a TWC News story. The ice they produce is 22 degrees, which is sure to be able to bring the temperature of a concrete mix down to more manageable levels. Before dropping chucks of ice into your mix, however, it’s worth noting that ASTM C1602 requires that ice be completely melted by the time mixing is complete. Depending on the amount of ice used and the ambient temperature, it may be better to purchase larger or smaller pieces of ice, or wait until it’s melted before adding it to the mixer. You should also enlist the help of an engineer to help you determine the amount of ice needed.
Almost two years after they announced the release of their Bluetooth Battery that allowed owners to remotely monitor battery life and even disable the battery if it’s stolen, DeWalt is set to release a massive upgrade to their connected tool platform.
Mistakes during demolitions happen. Sometimes contractors knock down the wrong buildings, other times the explosives used don’t knock the building over, and other demolitions are carried out with a complete lack of regard for human life. As fun as they are to perform and watch, they’re inherently dangerous and there should be a plan in place in case things go wrong.
Construction sites can often be some pretty spooky places, especially when unexpected items and creatures, like human remains, are found on the property. They can also be the site of some heavy superstition, like at several projects in Iceland that were believed to be delayed by hidden elves. But, according to one contractor, there’s something especially spooky about the childhood home of serial killer Ted Bundy.
Cranes collapse for a variety of different reasons. Some are overloaded, some catch on fire, and others succumb to high wind loads. Regardless of the reason, a falling crane can cause tons of damage and have the potential to kill on-site workers and pedestrians walking near the job site.
A recent crawler crane collapse in Northern Italy could have been much worse as the crane, carrying a large section of viaduct, crashed to the ground.
On January 1, 2017, OSHA officially put into effect a revision to workplace injury and illness reporting that requires certain employers to submit recorded information of these instances electronically. Companies were to submit all of this information from the previous year (2016) by July 1, 2017, but now that due date is in jeopardy.
There’s no shortage of company’s trying to improve the world’s roadways. Asphalt and concrete each have their own disadvantages, especially when maintenance environmental factors are taken into consideration. Plastic is a major problem for landfills, as well, as it can take an estimated 500 years to fully decompose. One UK company believes they can solve both maintenance and environmental problems through the use of recycled plastic.
According to the US Department of Labor (US DOL), the construction industry has the highest rate of current drug users (15.6%) as compared to any other industry in the United States. As the city of New York grapples with trying to reduce their alarming rate of injuries and fatalities on construction sites, the New York chapter of the Associated Builders and Contractors (ABC) has proposed that lawmakers add mandatory drug and alcohol testing for construction workers to the law books, according to the New York Daily News.
Feeling the pressure of 9 straight quarters with a decline in total revenue, Caterpillar has acquired the equipment sharing startup, Yard Club, to get help dig themselves out of the dirt. Their most recent quarter was the company’s first positive revenue quarter since November of 2012.
I’m a firm believer that before robots start taking over construction jobs, we’ll first be working with robotics to make workers more efficient and our job sites more functional. Instead of using 3D printing robots to build an entire project, why not use them first to create intricate details and bring character back to buildings? Instead of pushing human labor out of the way, why not use robotics to enhance the abilities of our workers, to improve their health and productivity? With rise in development commercial exoskeletons, workers will soon be able to harness additional strength by just slipping on a suit.
Traffic in Atlanta sucks, there’s really no other way to say it. So imagine the tough position commuters and city officials were put in when a bridge of a major highway on the north side of the city caught fire on March 20, 2017 and was damaged beyond repair. 243,000 motorists were forced to find alternate routes to work for the estimated 3 months that it was going to take to rebuild it. Now, imagine how thrilled they were when the highway opened back up one month ahead of schedule.