Pervious Concrete Company Limited

14/06/2019

Getting To Know Trinidad and Tobago’s First Green Building

Environmentally friendly with healthier, safer, and more productive working spaces. Savannah East was envisioned by RGM Limited to be the first LEED certified building in Trinidad and Tobago. We pull the curtain back, just a bit, on this landmark project. Read the full editorial at Trinidad & Tobago Green Building Council :

Environmentally friendly with healthier, safer, and more productive working spaces. Savannah East was envisioned by RGM Limited to be the first LEED certified building in Trinidad and Tobago. We pull the curtain back, just a bit, on this landmark project. Environmentally friendly with healthier, sa

12/06/2019

Interested to know about our water supply? Read on...

A concrete jungle in Trinidad? June 12, 2019 concreteperv Leave a comment Trinidad, a concrete jungle? You’re probably shaking your head thinking “No way, not in this country”. Well, let’s look at it this way; Does it flood where you work or live? If you answered with an astounding “Yes”...

12/06/2019

Research has determined that 97.6 to over 99 percent of oils introduced into pervious pavements are trapped and biodegraded. These drippings do not infiltrate the soil.

Here are some of the most popular questions and answers about Pervious Concrete

Pervious Concrete Pavement – Frequently Asked Questions June 12, 2019 concreteperv Leave a comment Q: What happens to oil that drips on pervious concrete? A: Several studies have been conducted on the behavior of oil introduced into a pervious pavement system. Findings show that the oil is contain...

12/04/2019

Hello Everyone,
I have attached an informative document to help assess Pervious Concrete for your project. It contains an introduction, product description with flow rates, environmental effects, links to our brochure, a video of city engineers and developers feedback, a video of water being discharged onto Pervious Concrete and real world numbers for a 5 car parking lot.
Please share the link below with anyone that you think can or should be using Pervious Concrete to help alleviate flooding issues.

https://drive.google.com/file/d/1BxtqZQX00dCKCOfALXyorTb1gjo0E1od/view?usp=sharing

01/04/2019

Pervious Concrete: The most effective and efficient drainage system.

Here's a pseudo scenario with Architects and Designers in mind;

A developer wants to construct a 20 unit apartment building so he hired an architect to realize his plans (no pun intended). The architectural firm designs and engineers everything and all goes well then the developer signs off on the design. All permits are granted, a general contractor is chosen from the tender and the project starts in 30 days.

We got wind of the project and contacted the general contractor to query about the architectural firm. They're contacted about the project to let them know about saving $450,000 in drainage costs on the project.

One of two things can happen here;
1. They blow me off because their drainage design for the parking area is completed and it's of sound engineering, which it probably will be for standard code, and it'll be too expensive to make changes to the plans which they'll have to resubmit for permitting. Oh, don't forget the general contractor has to resubmit their quotation to include these changes as well.
Or
2, They agree to meet with me to learn more about this ludicrous claim I've made.

Ludicrous, no, reality, indeed.

Pervious Concrete is the most effective and efficient drainage system you can implement into your designs, saving your client hundreds of thousands of dollars based on first time cost basis.

Rainwater flows through the Pervious Concrete, through a bed of aggregate and finally into the earth, where it belongs. The flow rate through Pervious Concrete is, at a minimum, 200 litres a minute per square metre making Pervious Concrete the most effective and efficient drainage system.

Using Pervious Concrete also enables the designer to better utilize valuable property space. There's no need for any expensive runoff capturing devices like swales, retention ponds, tanks, drains, etc. so you can add a few more parking spots or whatever is deemed useful for the new space acclamation.

The best part about this is the upfront savings for the developer on a first cost basis.

Let's have a flood free environment and replenish our already depleted aquifers by utilising sustainable development in your designs.

Pervious Concrete
When it Rains, It Drains......

Here are two videos to learn more what Pervious Concrete can do for your project:
This five-minute video illustrates the sustainable and economic benefits of pervious concrete in mitigating stormwater runoff.
https://youtu.be/HcY8sfLDeYA

Pervious concrete infiltration demo. One minute video
https://youtu.be/5NvCSw_uXZY

Contact us for more information.
Pervious Concrete Company, Ltd.
An Environmental Sustainable Development Company
(868) 719-1747
[email protected]
www.ConcretePerv.com
www.Facebook.com/ConcretePerv

21/03/2019

Hello everyone. Well, we're up and running.
Pervious Concrete is now available for installation thanks to all the hard working associates at CEMEX, Trinidad Cement Ltd. and ReadyMix (West Indies) for bringing Pervia (CEMEXs' Pervious Concrete) to Trinidad.

This is an exciting time for all involved, Trinidad Cement Limited, ReadyMix (West Indies) and Pervious Concrete Co., Ltd.

02/07/2018

Just saw this telephone interview (Link Below) on the recent flooding issues we've been experiencing in PoS with Ministry of works & Transport Minister Rohan Sinanan on CNC3 Television's The Morning Brew with Hema Ramkissoon.
His solution is to pump the flood water out of PoS. Think about this plan for a moment, I know than anyone with some assemblance of logic will surmise that pumping water from the shallow end of a pool to the deep end is ludicrous.
Please Mr Sinanan, have your agency get in touch with us so we can suppress the flooding issues in Trinidad ASAP.

http://www.cnc3.co.tt/morning-brew/rohan-sinanan-pumps-ease-pos-flooding

17/05/2018

Brace for floods this year

Hello Friends,
Below is a journalistic report I read on twitter today and felt compelled to repost here. Please keep in mind as you read through the story that Pervious Concrete can and will help the situations of flooding, although, bear in mind also, not all situations are ideal for Pervious Concrete.

The problem isn't just one aspect that causes flooding but the collection of many issues that will cause a flood. The first is covering a pervious surface, soil, with an impervious surface. That water, or runoff, will now be directed into the streets and/or drains, increasing the volume and velocity of water going downstream and as it flows downstream it's constantly increasing in volume and velocity, a vicious cycle as it heads downstream. Another major cause of flooding is dumping refuse into the already inadequate waterways which blocks the passageways and flows over into the surrounding area.

The mentality of a lot of Trinidadians is to dump into the river when it's flowing, this is called "Out of sight, Out of mind", a "Not my problem" attitude. This needs to change NOW!

Read on......

Repost from the The Trinidad Guardian
Climatologist warns: Brace for floods this year
By Rhondor Dowlat
Published: Thursday, May 17, 2018

The start of the 2018 rainy season will be declared in a few days as a Tropical Storm is currently forming in the region and could be heading to T&T.

As a result T&T citizens are being warned to prepare themselves for this season as it is being predicted to be worse than last year with June’s Tropical Storm Bret and “the great floods of October (2017)”.

This warning came from climatologist Kenneth Kerr, who spoke at the Wet & Hurricane Season’s Seventh National Climate Outlook Forum held at the Sugarcane Feed Centre, Pokhor Road, Longdenville, Chaguanas.

The forum was hosted by the T&T Meteorological Services in collaboration with the Caribbean Agricultural Research and Development Institute.

Kerr said that the Met Office predicts a 42 per cent chance of a near normal hurricane service and a 25 per cent of an above average hurricane season for 2018.

He added that there averages about one to four named storms, of which one or two can become hurricanes.

“In the most likely case, three named storms with one becoming a hurricane,”
he said.

“This season will see high impact tropical waves, heavy rainfall, high winds, hot spells, tropical storms and hurricanes with risks such as floods, landslides and spikes in dengue cases,” Kerr said.

He added: “We are going to get maximum temperatures that are warmer than usual, night temperatures are expected to be warmer than usual with minimum temperatures exceeding the average.

With respect to hot spells, Kerr predicted higher than usual hot spell days during the Wet Season—45 to 55 per cent chance for at least 28 hot spell days, with August to October likely to produce the most frequent.

“Hot spells does not mean no rain…it means more intense thunderstorms,” Kerr said.

In the wet season, dengue cases increases and this year, according to Kerr will be no different as they expect spikes in dengue cases and urged citizens to empty all barrels and clean their surroundings.

Predicted cases, according to averages from last year can be from 95 cases to 242 cases as was detected in the St Andrew and St David Counties.

“It is going to be an erratic wet season with slower than usual onset ahead for 2018,” Kerr said.

He urged citizens and all other stakeholders to start preparing for the season now, “today,” by nailing down their roofs, strengthening infrastructure to houses and buildings, clearing drainages and drains especially farmers in flood prone areas and stocking up on sand bags.

“Our main hazard in the wet season is flooding because of where we live and how we treat the environment and what we do in terms of preparation. This season, it is possible to expect similar events like 2012’s Diego Martin flooding; 2013’s riverine flooding; 2014’s Manzanilla/Mayaro flooding where the road was washed away cutting out access for days, 2016’s Matelot incident and last year’s great floods of October,” Kerr said.

He assured that the Met office along with other agencies will utilise and maximise on all social media platforms in sending out Tropical Storm warnings and bulletins.

15/12/2017

We're Live!!!!!!!
Our Website went live today. Check us out and leave a feedback if you'd like to. Share it with anyone who is thinking of using asphalt or solid concrete. This will surely change their minds on installing an impervious surface.

Literally, Pervious Concrete drains stormwater runoff at a startling rate of 200 Litres per hour per square metre. No more Flooding issues.

17/08/2017

Putting rainfall into perspective for Port-of-Spain. I did some research today because I wanted to know how much water is produced in PoS with just a 1/2 inch of rain. I chose the area for it's density and it's high percentage of impervious surfaces.
Unreal numbers. Read and comment

17/08/2017

OUR URBAN AREAS have lost their ability to naturally recycle stormwater due to the impervious nature of infrastructure engineering since stormwater drainage was installed. We have been building roadways and streets to capture the runoff and send it somewhere else, usually to the river or ocean. For decades in Trinidad and Tobago, controlling stormwater was never a main goal but today, with more water scarcity, we are beginning to see this same water more as an asset and less as a liability.

One way of better using stormwater is by refilling underground aquifers that have been depleted by over-pumping, that equates to nearly every aquifer in Trinidad today. Recycling of all captured waters would then reduce pollution of our creeks, rivers, bays and oceans. Therefore we need to revisit current policies and practices and change the popular mindset to manage water effectively and redirect water into the proper channels, starting with a simple solution to retrofit our streets with permeable surfaces to change the dynamics of water management.

I see the biggest problem is that most property owners don’t really care about where the water goes as long as it’s not on their property so it’s channelled into the streets from parking lots taking with it the pollutants, oils, urban waste, chemicals and a list of other toxic elements. Our coastal cities have serious pollution problems after each rainfall, where stormwater carries more dangerous pollutants than raw sewage due to the presence of oils, trash, f***s and chemicals on streets and sidewalks. The pollution is washed directly into the bay and ocean without any filtration. To make matters worse, broken sewers and faulty septic systems can add significant numbers of pollutants, resulting in added stress on our rivers and waterways.

If we could reengineer our streets to absorb the stormwater locally so it could percolate and purify locally, we would reduce the amount of water polluting our waterways, beaches, lakes and streams. Removing impervious surfaces and replacing with pervious surfaces would be ideal but is costly and disruptive to urban life and traffic. Removing some portions of roadway would be less expensive and can be better managed.

Many new roadway, driveway or parking lot surfaces can be designed with pervious concrete, which allow water to pe*****te below the pavement. One simple solution is to replace the 18–24in (45–61cm) concrete slabs against the curb with a pervious concrete or pervious concrete tiles. The work can be implemented immediately on urban roadways without major interruption to traffic.