Vezi subiect - bazalt oțel vs; eficiente. Most of us have by now heard about basalt rebar; stronger, lighter, does not rust.
Its advantages for Eco-shells 1 or II are obvious and well presented by videos on the website. I believe there are cost savings to be had using rock rebar on MD's as well. Basalt bar comes in rolls of 200 meters, or 650 feet. So a 78 foot piece for the arch in a 50 ft dome can be rolled off in one piece, cut and installed in the slab in just a few moments. No welding, no tieing pieces of 20 ft steel together in splices, no bending of steel to make a shape. Since labor is by far the biggest cost, the savings here far outweigh the extra cost of the basalt bar. So basalt bar installs much easier and quicker, saving labor.
COMPOSITES AND CONCRETE. Inexpensive and versatile, concrete is simply the best building material for many applications.
The issue is how to make concrete stand up to environmental and structural loads for long-term performance. A true composite, concrete typically consists of gravel and sand — aggregate — bound together in a matrix of fine Portland cement, with metal rebar usually incorporated for strength. It performs admirably under compression, but tends to be brittle and somewhat weak in tension. Tensional stress as well as plastic shrinkage during cure leads to cracks, which invite moisture ingress that eventually leads to corrosion of the embedded metal and eventual loss of integrity as the metal deteriorates.
Fiber-reinforced polymer (FRP) composites long have been envisioned as an enabling material for improved concrete performance. Onlinepubs.trb.org/onlinepubs/archive/studies/idea/finalreports/highway/NCHRP86_Final_Report.pdf. Www.sefindia.org/?q=system/files/Sustainability+of+RCC+using+Basalt+composite+Rebars-MasterBuilder-Sept2010.pdf. View topic - basalt vs steel; cost effective. What is Basalt? What is Basalt Geo Mesh? What is Basalt Woven Fabric? Basalt Rebar (Zeebars) Basalt Rebar (Zeebars) Here’s a natural substitute for steel rebar.
It seems like this material would work perfectly with earthbag building, especially in seismic areas where additional reinforcing is typically required. Image and content below is from the Smarter Building Systems website. Basalt Rebar. Basalt Composite Rebar (BCR) Basalt rebar is a bar with continuous spiral ribbing formed by means of winding by basalt strip oiled in highly durable polymeric compound.
Basalt rebar is a promising composite material with a wide range of application in construction. Rebar is resistant to corrosion and aggressive chemical compounds, is extremely light and durable. Research results have shown that the service life of constructions, where basalt rebar is used, considerably exceeds the life of similar constructions where other materials are used.
Characteristics Temporary tensile strength: MPa1100 Modulus of elasticity: MPa 70000 Density: gr/cm³1,9 Properties of the BCR: Low specific weight: 4 times lighter than steel rebar; Resistance to corrosion, rotting, and warping; Unique chemical resistance (potash environment, hydrochloric acid, alkali, sea water, and other aggressive environments); Www.basaltex.com/files/cms1/Basalt-Fibres-as-reinforcement-for-composites_Ugent.pdf. Www.nsrp.org/6-Presentations/SDMT/021308_10_Presley_Streetman_Sudaglass.pdf. Vulkan Europe BV ~ Rebar. The manufacturing process of basalt fiber for concrete reinforcement The basalt fibers are unwind of as many bobbins roving as necessary to get the desired diameter of the rebar.
During the pulling of the rovings they are led through a bath of liquid resin. After the application of the resin, the rovings are drawn by a norrowing mold gate, and finally through a heated mold which is equal to the desired diameter. The heat in the mold causes the resin liquid turns into a solid composite. The former basalt reinforcement was cylindrical in shape. The use of basalt fiber rods has a series of advantages compared to conventional reinforcing bars:
Smarter Building Materials for a Cleaner Environment. Basalt Rebar. Www.provenperformancechemical.com/pdf/Basalt_Study.pdf. Basalt Fiber Rebar. The construction industry is becoming aware of the existence of reinforcing bars made from fiber-reinforced plastic.
Fiberglass rebar has been on the market for some time, making inroads where steel rebar doesn’t work well. The first common applications have been used in corrosive environments and places where the induced fields resulting from steel reinforced concrete structures exposed to high levels of radio frequency radiations are a problem. There is now a new entry into this field, rebar made from basalt continuous filaments. Basalt is a common volcanic rock, found throughout the world where volcanoes have erupted and sent lava to the surface. It is actually present everywhere at a depth below the surface—there is a worldwide layer of basalt rock below the sedimentary or metamorphic rock that is exposed on the surface. Basalt rebar - products - Technobasalt. Basalt rebar Basalt rebar is a bar with continuous spiral ribbing formed by means of winding by basalt strip oiled in highly durable polymeric compound.
Basalt rebar is a perspective composite material with a wide range of application in construction. The rebars are resistant to corrosion and aggressive chemical compounds, is extremely light and durable. Research results have shown that long life of constructions where basalt rebars were used considerably exceeds the life of similar constructions where other materials were used. Technical advantages Application spheres. Basalt fiber-reinforced polymer/composite #5 rebars rebar BFRP basalt rebar, China Basalt fiber-reinforced polymer/composite #5 rebars rebar BFRP basalt rebar Supplier,Factory.
Fiber Technology. Gallery: Basalt Fiber Rebar. Basalt Rebar, Basalt Rebar Products, Basalt Rebar Suppliers and Manufacturers at Alibaba.