Asphalt is one of the world’s most popular pavement materials. Because of that, researchers and scientists are constantly looking for ways to improve upon it. Additives have been included in some asphalt mixes for years to improve strength, but recently researchers have been getting pretty clever with the types of additives they’re testing.
Much like the recycled plastic additive mentioned above, placing cigarette butts encased with paraffin wax solves two problems at once, it reduces landfill waste while also improving upon asphalt’s design, according to a team of researchers in Melbourne, Australia. Unlike the plastic example, the cigarette butts do not improve the strength of asphalt, but they do help reduce the heat island effect of the pavement.
The City of Los Angeles recently made headlines when they decided to “paint” some of their existing asphalt roads a much lighter color in order to reduce heat island effect. Instead of changing the color of the asphalt, the researchers found that cigarette butts reduce the bulk density and increase the porosity of the bitumen, thus allowing for lower surface temperatures.
According to Lansing Community College, 4.3 trillion cigarette butts are littered every year and 80% of those butts eventually make their way into our waterways. Their pollution results in lower quality drinking water and also leaches chemicals like cadmium, lead, and arsenic into the environment. Birds, fish, and other wildlife are greatly affected by the ingestion of cigarettes, as well.
Full Study: Physico-mechanical properties of asphalt concrete incorporated with encapsulated cigarette butts | Science Direct
I’ve been very fortunate over the course of my relatively short career in construction to spend time focusing on many different aspects of construction. I recently spent about two and a half years working in site development and Storm Water Pollution Prevention Plan (SWPPP) compliance on a national scale and I wanted to share some of the insights that I gained from that experience.
In 2016, Elon Musk and Tesla announced that they had developed an innovative solar roofing tile that looks almost identical to traditional roof shingles currently on the market. Standard solar panels look be large and clunky on a roof, which made many excited about a nearly “invisible” solar tile option. After 3 years, we recently got a major update into how the installations of the product is going.
On Thursday, April 18th, the New York City Council passed what they are calling “NYC’s Green New Deal,” which legislators hope will greatly reduce the city’s greenhouse gas emissions. In order to achieve those results, several mandates included in the legislation will have major effects on the construction and real estate industries.
Almost 7 years ago, construction began on the west side of Manhattan’s $20 billion mixed-use development. On March 15, 2019, Hudson Yards, as the development is known, has officially opened.
Mercedes-Benz Stadium, home to the NFL’s Atlanta Falcons, was completed in late 2017. The impressive structure had a hefty price tag of $1.4 billion, but it has already played host to several of the biggest events in sports, including the 2018 College Football National Championship and the recent 2019 NFL Superbowl. In addition to playing a large role in the sports world, it’s also playing a large role environmentally for the area surrounding the stadium.
A new 21-story apartment building proposed for Milwaukee, Wisconsin as received unanimous approval from the City Plan Commission. If built, the new tower could possibly be North America’s tallest mass timber building.
The USGBC recently released their 2018 ranking of the Top 10 US States for LEED construction, which is sorted by Gross Square Footage per Capita. That ranking system allows them to get a fair comparison of states, despite differences in population and number of buildings.
Tall buildings made with structural timber have been on the rise in Canada and European countries in recent years, but the United States has been slower to adopt the method due to code restrictions. The state of Oregon recently released an addendum to their building code to allow taller mass timber buildings in the state and an upcoming International Code Council (ICC) vote could encourage more states to follow suit.
You may have been sitting in your house or office one day and noticed the distinct sound of a bird hitting the window. It’s pretty common, as it’s estimated that as many as 988 million birds die in the US each year by colliding into glass. The new arena that will house the NBA’s Milwaukee Bucks has incorporated some design elements that will reduce the amount of birds killed by the massive structure, allowing it to be dubbed the “World’s Most Bird Friendly Sports Arena.”