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Natural Awakenings Central New Jersey

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Concrete Made with Rubber Refuse

Concrete surface made with rubber

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Concrete consists of water, cement and an aggregate such as sand or gravel. The aggregate has to be mined from the ground, and is now in short supply in many parts of the world, while discarded tires can be partially recycled, but are often burned or relegated to landfills.

Attempts to replace some of the aggregate used in concrete with crumbled, used tires has been stymied by a bonding problem because pores in the rubber fill with water when the concrete is first mixed, and become empty holes as the water evaporates and the concrete sets.

As reported in the journal Resources, Conservation & Recycling, scientists at Australia’s RMIT University have produced good-quality concrete in which all of the aggregate has been replaced with tire particles. They started with wet concrete in which all the aggregate is comprised of tire particles, then placed it in special steel molds as it set to place pressure on the concrete, compressing the particles and the pores within.

Once the concrete dried and set, the cement had bonded much better to the tire particles. When compared to  previous 100-percent tire-aggregate concrete produced by conventional means, the preloaded concrete exhibited 97 percent, 59 percent and 20 percent increases in compressive, flexural and tensile strength, respectively.

Tick Talk

Spring officially sprung on March 21. We have turned our clocks ahead. We are looking forward to warm winds, sunny skies and the smell of fresh cut grass. The daffodils and tulips have recently bloomed and we are just starting with the yard work that comes with the warmer weather.  Sadly, another season has started ramping up.  Tick season.

•             The best form of protection is prevention. Educating oneself about tick activity and how our behaviors overlap with tick habitats is the first step.

•             According to the NJ DOH, in 2022 Hunterdon County led the state with a Lyme disease incidence rate of 426 cases per 100,000 people. The fact is ticks spend approximately 90% of their lives not on a host but aggressively searching for one, molting to their next stage or over-wintering. This is why a tick remediation program should be implemented on school grounds where NJ DOH deems high risk for tick exposure and subsequent attachment to human hosts.

•             Governor Murphy has signed a bill that mandates tick education in NJ public schools. See this for the details.  Tick education must now be incorporated into K-12 school curriculum. See link:

https://www.nj.gov/education/broadcasts/2023/sept/27/TicksandTick-BorneIllnessEducation.pdf

•             May is a great month to remind the public that tick activity is in full swing. In New Jersey, there are many tickborne diseases that affect residents, including Anaplasmosis, Babesiosis, Ehrlichiosis, Lyme disease, Powassan, and Spotted Fever Group Rickettsiosis.

•             For years, the focus has mainly been about protecting ourselves from Lyme disease. But other tick-borne diseases are on the rise in Central Jersey. An increase of incidence of Babesia and Anaplasma are sidelining people too. These two pathogens are scary because they effect our blood cells. Babesia affects the red blood cells and Anaplasma effects the white blood cells.

•             Ticks can be infected with more than one pathogen. When you contract Lyme it is possible to contract more than just that one disease. This is called a co-infection. It is super important to pay attention to your symptoms. See link.

https://twp.freehold.nj.us/480/Disease-Co-Infection

A good resource from the State:

https://www.nj.gov/health/cd/topics/tickborne.shtml

 

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