Geogrid

Geogrid inbetween blocks

WHAT IS GEOGRID?

Geogrid is a manufactured high strength reinforcement grid that comes in rolls of various sizes and strengths. It is composed of high-molecular weight, high-tenacity multi-filament polyester yarns that are woven together into a stable mesh. geogrid bi directional

Below are examples of different types of high quality geogrid available from SRW Products.

Types of Geogrid

 

WHAT ARE THE ADVANTAGES OF GEOGRID?

  • Adds strength and longevity to your wall
  • Helps prevent wall failure
  • Resistant to biological degradation and naturally encountered chemicals, alkalis and acids.

WHERE CAN GEOGRID BE USED?

  • Retaining walls
  • Steep Slopes/Embankments
  • Sub-grade Stabilization
  • Waste Containment
  • Void Bridging

TYPES OF GEOGRID:

Geogrids are made as either  bi-directional (bi axial) or uni-directional (uni axial).

Bi-directional geogrid has significant tensile strength in both directions. This structure also provides an ideal interlocking system for more effective force bearing and diffusion in soil. Some examples of bi-directional geogrid are the 3 Series and Universal Geogrid from SRW Products.

Tip: Bi-directional geogrid should be rolled out perpendicular or parallel to the wall.

Uni-directional geogrid have very high tensile strength and high stiffness in the machine direction with very low stiffness in the other direction. Uni directional geogrids provide stability and are often used in applications that has little to no loading in the secondary direction. Some examples of uni-directional geogrids are the 5 to 10 Series geogrids from SRW Products.

Tip: Uni-directional geogrid should ALWAYS be rolled out perpendicular to the wall.

This structure has a very high tensile strength. The tensile strength of the product can adapt to a variety of soil, is widely used reinforced reinforcement materials.

WHY IS GEOGRID IN RETAINING WALLS SO IMPORTANT?

Retaining Wall GeogridThe soil behind retaining walls can exert a tremendous amount of pressure on the blocks so it is very crucial to use a high quality geogrid (such as one from SRW Porducts) in-between the blocks to help alleviate that pressure and keep the wall from falling over.

To better visualize how geogrid works think of yourself leaning over. Now imagine someone standing behind you and holding your shirt so that you don’t completely fall over. You are acting as the retaining wall, your shirt is acting as the geogrid, and the person holding your shirt from behind is acting as the Earth. Without the geogrid there would be nothing for the Earth “to grab” and keep the wall from tumbling over.

Geogrid also creates a reinforced coherent mass behind the retaining wall by stabilizing the soil.

To see just how well geogrid reinforces soil check out this one minute demonstration by Allan Block.

[embedyt] https://www.youtube.com/watch?v=BQ2w6A23ElQ[/embedyt]

 

The test performed takes two cylinders of soil and applies vertical force to see how the soil performs. The first cylinder is just compacted material. The second is also compacted material with the addition of mesh screens to simulate the use of geogrid reinforcement.

Notice in the video how the geogrid reinforces the soil mass so that it can withstand much more force. It also helps the soil that is reinforced to act as one coherent gravity mass. If you consider a simple gravity retaining wall, the forces from the soil being retained must be retained by the mass of the wall blocks.

When you use geogrid with a retaining wall, the mass of the blocks and the additional mass of the reinforced soil helps to withstand the pressures behind the wall. This combined mass is what allows very tall walls to be built when using geogrid.

HOW TO USE GEOGRID IN RETAINING WALLSretaining-wall-geogrid-allan-block

To use geogrid in a retaining wall first follow the installation instructions supplied with the retaining wall of your choice., This includes foundation preparation, block alignment, core filling, drainage rock placement, back fill placement, and compaction. For a brief how to please check out our article on How to Build a Block Retaining Wall.

  1. Start the geogrid near the face of the block and roll out in one continuous piece to the back of the reinforced soil mass (no splicing). Butt together at edges — DO NOT OVERLAP GEOGRID.

Tip: SRW Universal and 3 Series geogrid are bi-directional and can be rolled out either perpendicular or parallel to the wall.

Geogrid Installation of Bi-directional and Uni-Directional Geogrid

2. Install geogrid under tension. Be sure to remove any slack by pulling the grid backwards from the wall face. A nominal tension can be maintained by staples or stakes, until the geogrid has been covered by at least 6 inches of structural fill.

Geogrid placement in walls

3. Place the next course of block on top of the geogrid. Back fill and compact the soil.

Geogrid inbetween blocks

Tip: Always back fill and compact one course of block at a time. Keep an adequate cushion of soil between the geogrid and equipment.

4. Repeat process until retaining wall is completed.

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TLC Supply in Quincy, MA is your #1 place to purchase Geogrid for your retaining wall project. We carry several high quality Bi-Directional and Uni-Directional Geogrid reinforcements from industry leader SRW Products

TLC Supply also has a wide selection of retaining and free standing retaining wall blocks from Techo Bloc, Allan Block, KeystoneGenest, and Belgard

We are happy to answer any of your project questions, just leave a comment below!

 “Best Price, Best Advice” -TLC Supply,Inc.

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Wet Cast Pavers vs. Dry Cast Pavers

While the aesthetics of your concrete paver are an important part when selecting what will be best for your project, knowing how the paver is made is just as important. Ensuring the paver is suitable for the job will help the overall longevity of the projects lifetime. There are two type of concrete pavers: Wet Cast Pavers and Dry Cast Pavers.

What is the difference between Wet Cast Pavers and Dry Cast Pavers? 

The Process: As the name suggests, the concrete used in manufacturing wet cast pavers is typically quite liquid. This concrete mix is poured into a mold shaped for the paver and then vibrated to release air bubbles from the mix.Wet Cast Paver Mold

The curing process for wet cast pavers is much longer than that of a dry-cast, making it more labor intensive to produce. Once this concrete is cured, the mold is removed and the pavers are palletized and ready for shipping.

Dry Cast Pavers - Techo Athena
Dry Cast Pavers – Techo Athena

Dry cast, as it sounds, is a concrete mix with very little water. These are the pavers we typically think of when picturing a paver block. Dry cast paver mixes are similarly placed in a mold, but are then compressed with very high pressure, complex machinery. The compressed molds are cured on racks before being palletized.  Because these pavers are air-cured they can be produced quickly and affordably.

Color & Finish: Wet cast pavers often feature more bold color tones, smoother and more intricate surfaces, and can better imitate natural stone. While dry cast have historically been more simple and basic in color and texture, modern manufacturing has made color blends and surface textures more desirable.

Wet Cast Paver - Techo Block Aberdeen
Wet Cast Paver – Techo Bloc Aberdeen
Dry Cast Pavers
Dry Cast Pavers – Techo Allegro

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Strength: Both wet cast and dry cast pavers are suitable for residential projects such as driveways, walkways, and patios. When considering a paver for a large-scale commercial project, dry cast is a more suitable choice. Dry cast pavers have a more optimal water to cement ratio making them incredibly strong and high strength, perfect for the load capacity of a road or highway.

Dry Cast Pavers Driveway
Dry Cast Pavers in Driveway – Techo Blu 80
Wet cast pavers
Wet Cast Pavers – Techo Inca

 

Protection & Maintenance: Once you decide which paver suits your project best, you want to protect it from the elements, especially during the winter months here in New England. Dry cast and wet cast pavers should both be sealed to prevent possible staining, chemical deterioration from any acids or salts, and color fading from use over time.  We offer a variety of sealers for pavers such. Alliance Low Gloss Sealer adds a mild sheen and is to be used only on dry cast pavers only. Our best seller, Prosoco’s Siloxane PD is a clear, no-gloss sealer that can be applied to wet or dry cast pavers.

To further protect your new investment, it is recommended to use an ice melt that is safe for hardscape and masonry. Mr. Magic Premium Ice Melt is engineered to safely breakdown the ice without breaking down your pavers.

Summary: Wet cast pavers offer more variety in color and finish, and they also typically cost a bit more and are generally less durable. Dry cast pavers are typically very standard in color but have high strength and are more economical, ultimately making them the more popular option. Here at TLC Supply we offer a multitude of both dry cast and wet cast items from leading paver manufacturer’s Techo Bloc, Genest, and Belgard.

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The experts at TLC Supply are happy to answer any of your project questions, just give us a shout! Leave your questions or comments below. 

 “Best Price, Best Advice” -TLC Supply,Inc.

                                                                                                                                              -GA

Easy Garden Path Ideas

Happy Earth Day! What better way is there to enjoy mother nature than by strolling through a beautiful garden path?

A well designed garden path can create an inviting atmosphere for you and your guests, plus it can enhance the functionality of your garden.

gardenpath

There are numerous ways you can create a alluring and fun garden path, you just need to think outside the box! A path that curves and disappears around a corner draws attention to what lies beyond. A straight, narrow path can make a garden appear longer, especially if the end point is hidden. We’ve collected some of our favorite garden path ideas to help inspire your design.

Idea #1. Elegant Entry with Techo Bloc’s Maya Stepping Stone


Garden Path Techo Bloc Maya Step

Techo Bloc’s Maya stone slab is an excellent way to enhance your garden path. These slabs come in 4 different earth tone colors to mimic the natural beauty of real stone.

Idea #2. Broken Beauty

Garden Path Irregular Bluestone

Irregular Bluestone slabs give off a rustic look. The irregularity and sharp edges of the stone will contrast nicely with the delicate softness of your flower surround.

Idea #3. Clean Lines

Garden Path Granite StoneGarden Path Granite Stone and Pebbles

Lay granite or bluestone pattern stock in crushed stone to create a minimalist garden path with clean lines.  You may opt to surround the granite with black Mexican beach pebbles to give a striking contrast.

Idea #4. Playing with Texture

Garden Path Crushed Stone

To expand on Idea #3, try creating landings out of bluestone or granite pattern and alternate with crushed stone. These varying layers of texture and rectangular forms will create visual appeal.

Idea #5. Staggered Lines

Garden Path Staggered Garden Path Staggered

Instead of laying stone in a straight line, mix it up by staggering 12″ x 36″ stone planks. The alternating stones draws the eye from side to side and creates an elongated appearance.

Idea #6. Geometric Intrigue

Garden Path Brick

Garden Path Brick

There are many versatile ways to lay brick and one option for your garden path is to make basket weave squares. Brick is timeless and it’ll add charm to your garden.

Another option is to surround a 12″ x 12″ bluestone square to create colorful garden steppers.

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Let us know which garden path design was your favorite in the comments below!

You can find all these materials at TLC Supply in Quincy, MA. Please visit our website to see even more hardscape and masonry products ranging from bluestone,granite,brick,natural stone,block,sand,cement, and much more!

Before you go, be sure to check out last year’s Earth Day post on Permeable Pavers.

The experts at TLC Supply are happy to answer any of your project questions, just give us a shout! 

 “Best Price, Best Advice” -TLC Supply,Inc.