15" Concrete Sphere Mold - History Stones

Instructions. The 15" concrete sphere mold is a plastic mold for concrete or hypertufa spheres. Make your own garden globes using these easy to use reusable molds.

Concrete Garden Spheres - 8", 10.5", 13" & 18" diameters ...

No reviews. $58.00 - $199.00. Select Size 8" Sphere 10 1/2" Sphere 13" Sphere 18" Sphere. Overview. Overview. Concrete Garden Spheres offered in 4 sizes. Crafted from fiber reinforced concrete, our spheres carry a one-year warranty. The use of Tennessee River pea gravel gives the spheres a textured surface and nice contrast with the concrete.

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SvitMolds Concrete molds Precast Concrete Balls Mould Concrete Finials Decorative Set 2 Mold P21. 4.1 out of 5 stars. 4. $34.00. $34. . 00. FREE Shipping. Resin Silicone Mold Resin Art Molds Sphere Ball Silicone Molds for Concrete, DIY Coaster/Flower Pot/Ashtray/Candle Soap.

Concretion - Wikipedia

A concretion is a hard, compact mass of matter formed by the precipitation of mineral cement within the spaces between particles, and is found in sedimentary rock or soil. Concretions are often ovoid or spherical in shape, although irregular shapes also occur. The word 'concretion' is derived from the Latin concretio "(act of) compacting, condensing, congealing, uniting", itself from con ...

Geodesic dome - Wikipedia

The first geodesic dome was designed after World War I by Walther sfeld, chief engineer of the Carl Zeiss optical company, for a planetarium to house his planetarium projector. A first, small dome was patented, constructed by the firm of Dykerhoff and Wydmann on the roof of the Zeiss plant in Jena, Germany.A larger dome, called "The Wonder of Jena", opened to the public in July 1926.

DIY: Learn How to Make Concrete Garden Balls [VIDEO ...

The mold for the concrete balls can be either a Christmas ornament or a glass globe previously used to cover a light fixture. This is not an all day project, as the creation of these pieces is fairly straightforward and is easily shown in the short tutorial. The best DIY projects are those that are simple to do yet yield great results every time.

Sphere Mold Set- History Stones - Concrete Molds- History ...

3 Concrete Sphere Mold Set. Use basic ready mix concrete to create unique spheres for your home and garden! Includes one of each of 10", 12" and 15" sphere molds.

The History of Concrete Lessons Learned from the Past …

The History of Concrete Lessons Learned from the Past 9000 Years Speakers: Frank Bowen, Rosetta Hardscapes Paul Ramsburg, Sika Corp The Precast Show 2019 • As one of the key constituents of modern concrete, cement has been around for a long time. About 12 million years ago in what is now Israel, natural deposits of cement were formed by

History of Concrete - Concrete and Cement History Timeline ...

Timeline of Concrete & Cement History. This is an interactive timeline covering the history of cement and concrete. It spans over 5,000 years, from the time of the Egyptian Pyramids to present day decorative concrete developments. Concrete has been used for many amazing things throughout history, including architecture, infrastructure and more.

DIY concrete spheres - YouTube

Jul 08, 2019· In this video I show you how I make concrete spheres. These have a ton of uses, personally I use them as cores for rope door stops.You can find a mould here:...

DIY concrete spheres - History Stones

Victor used History Stones concrete molds to complete the balusters (Venetian style baluser), rails, newel posts and the History Stones Tuscany Column. He did an outstanding job! During these hot last days of summer is a good time to put your dreams to action by ordering your concrete …

Concrete Garden Spheres | Wayfair

You have searched for concrete garden spheres and this page displays the closest product matches we have for concrete garden spheres to buy online. With millions of unique furniture, décor, and housewares options, we'll help you find the perfect solution for your style and your home. Browse through our wide selection of brands, like 17 Stories ...

Making Concrete Balls : 6 Steps (with Pictures ...

Concrete balls that size would weigh about 630 lbs. after curing. Vermiculite concrete is said to weigh 15% of what normal concrete weighs, and that would get you down to 94 lbs. If I were you, I'd coat a 24" exercise ball with expanding insulation (a.k.a. "Great Stuff") to about 8" or 10" thickness, except around the nipple.

Stone spheres of Costa Rica - Wikipedia

The stone spheres of Costa Rica are an assortment of over 300 petrospheres in Costa Rica, on the Diquís Delta and on Isla del Caño.Locally, they are also known as bolas de piedra (literally stone balls).The spheres are commonly attributed to the extinct Diquís culture, and they are sometimes referred to as the Diquís Spheres.They are the best-known stone sculptures of the Isthmo-Colombian ...

Explore the building - Spheres

The Spheres are really two different buildings- an outer frame with an interior concrete core. The core was made with 12 million pounds of concrete reinforced by 2.5 million pounds of rebar. At the base of The Spheres, a 400,000-pound ring beam transfers the heavy loads of gravity, wind, and seismic forces from the glass-and-steel façade to ...

History Stones | Concrete molds, Garden spheres, Concrete

Jul 31, 2015 - Make your own concrete garden globes using our reusable sphere molds. Available in 10", 12" and 15" diameter. Easy to use History Stones Molds.

Ornamental Pier Caps & Spheres | Concrete Fencing | Allen ...

Spheres. When paired with a decorative sphere, or ball finial, a pier can look elegant and stylish. Our concrete spheres are available in a variety of diameters, with a flat base to allow them to sit on our ornamental pier caps. Cast bespoke to your needs, these spheres look impressive, adding sophistication to any wall or driveway.

The History Blog » Blog Archive » Stone spheres found in ...

Sep 06, 2021· Stone spheres found in Orkney Neolithic tomb. Two polished stone balls have been discovered in a Neolithic chambered tomb on the Tresness peninsula of the Orkney island of Sanday. The 5,500-year-old tomb is rapidly eroding, and archaeologists have been working assiduously to salvage any artifacts and fully document the structure before the ...

Classic Concrete Garden Spheres - KnockOffDecor.com

Aug 01, 2019· Classic Concrete Garden Spheres. Pam from Simple Details is a big fan of outdoor accessories and décor but says, "too much of a good thing can take your space from classic to cluttered and cutesy in no time.". That's why Pam loves the serene look of Restoration Hardware's stone garden spheres. Instead of spending hundreds of dollars ...

Sphere Molds For Concrete - History Stones

Using History Stones concrete molds is not only an affordable and simple option for creating garden art, but you may customize your creations by using concrete …

History of Concrete - World Scientific

This book summarizes the history and development of cement and concrete. From prehistoric period to today, from ancient Egypt and Rome period to China, over tens of thousands of years of human civilization in the form of the gelled material (cement, concrete). The book is divided into seven chapters, including more than 300 references.

Why Target Stores Have Giant Red Spheres Outside | Mental ...

May 25, 2020· The giant red spheres, a.k.a. bollards, outside Target's stores do help reinforce the brand's red bullseye logo, but they're mainly there to keep shoppers safe.

Concrete Garden Orbs - Made By Barb - Simple DIY portland ...

Oct 04, 2015· Here are my DIY Concrete Garden Orbs inspired by draping methods but my own original exclusive design. These are not solid, don't require fancy molds and are so easy to make! The first large concrete garden sphere is made with a large beach ball and some polar fleece fabric that I …