https://wiki.opensourceecology.org/api.php?action=feedcontributions&feedformat=atom&user=Velacreations 2026-04-06T06:55:38Z User contributions MediaWiki 1.39.13 https://wiki.opensourceecology.org/index.php?title=Laminated_Ferrocement&diff=31255 2011-06-13T22:08:52Z

<p>Velacreations: </p> <hr /> <div>LFC<br /> <br /> <br /> '''LFC Tests on panels''' <br /> <br /> 6-13-2011 by Abe Connally, [http://www.velacreations.com]<br /> <br /> <br /> '''Panel 1''' - 1 layer 3/8&quot; hardware cloth, 36.5&quot; X 20.75&quot; - 757 si, 5.26 sf<br /> * 5/16&quot; - 3/8&quot; thick<br /> * Cured for 3 days<br /> * 17lbs, 3.23 lbs/sf<br /> <br /> <br /> '''Panel 2''' - 2 layers 3/8&quot; hardware cloth, 36.5&quot; X 20.375&quot; - 744 si, 5.17 sf<br /> * 3/8&quot; - 7/16&quot; thick<br /> * Cured for 3 days<br /> * 22lbs, 4.25 lbs/sf<br /> <br /> <br /> '''Tests''' - panels were placed on bricks, spaced 14&quot; apart. Weight was placed in center of panel, between brick supports.<br /> <br /> * Test 1 - 1 gallon water @ 8lbs on 2.25 si, 3.55 psi<br /> * Test 2 - 1 gallon water @ 8lbs on 1.5 si, 5.33 psi<br /> * Test 3 - human @ 173 lbs on 46 si, 3.76 psi<br /> <br /> <br /> '''Results'''<br /> * Test 1, panel 1 - troweled side up - no visible sag or cracks<br /> * Test 1, panel 2 - troweled side up - no visible sag or cracks<br /> * Test 2, panel 1 - troweled side up - no visible sag or cracks<br /> * Test 2, panel 2 - troweled side up - no visible sag or cracks<br /> * Test 3, panel 1 - troweled side down - visible sag but no cracks<br /> * Test 3, panel 2 - troweled side down - slight visible sag but no cracks<br /> * Test 3, panel 1 - troweled side up - extreme sag and panel snapped along brick support<br /> * Test 3, panel 2 - troweled side up - visible sag but no cracks<br /> <br /> Troweled side has 1/8&quot; less concrete on mesh<br /> <br /> <br /> '''Conclusions''' <br /> <br /> Both panels survived psi ratings for tank design (3.44 psi), however because troweled side has less concrete, it is a weaker side of panel in compression. Suggest using formed side as inside of tank, so that the troweled side will be in greater tension (more mesh, less concrete). <br /> Panel 2 with 2 layers of mesh seem to be stronger in all tests.<br /> <br /> I think these would do just fine as roof tiles or panels, especially if shaped to take advantage of concrete's compression strength. For a water tank, although they survived the psi required for an 8ft tall tank, I think more testing is required.<br /> <br /> <br /> '''More Information'''<br /> * [[:File:Ferrocement_panels_-_water_tank.pdf|LFC Panel Water Tank]]<br /> * [[:File:Ferrocement channels.pdf|LFC Channel Roof]]<br /> <br /> [[Category: Housing and construction]]</div>

Velacreations https://wiki.opensourceecology.org/index.php?title=Laminated_Ferrocement&diff=31254 2011-06-13T22:05:33Z

<p>Velacreations: </p> <hr /> <div>LFC<br /> <br /> <br /> '''LFC Tests on panels''' <br /> 6-13-2011 by Abe Connally, [http//:www.velacreations.com]<br /> <br /> '''Panel 1''' - 1 layer 3/8&quot; hardware cloth, 36.5&quot; X 20.75&quot; - 757 si, 5.26 sf<br /> 5/16&quot; - 3/8&quot; thick<br /> Cured for 3 days<br /> 17lbs, 3.23 lbs/sf<br /> <br /> '''Panel 2''' - 2 layers 3/8&quot; hardware cloth, 36.5&quot; X 20.375&quot; - 744 si, 5.17 sf<br /> 3/8&quot; - 7/16&quot; thick<br /> Cured for 3 days<br /> 22lbs, 4.25 lbs/sf<br /> <br /> '''Tests''' - panels were placed on bricks, spaced 14&quot; apart. Weight was placed in center of panel, between brick supports.<br /> <br /> Test 1 - 1 gallon water @ 8lbs on 2.25 si, 3.55 psi<br /> Test 2 - 1 gallon water @ 8lbs on 1.5 si, 5.33 psi<br /> Test 3 - human @ 173 lbs on 46 si, 3.76 psi<br /> <br /> '''Results'''<br /> Test 1, panel 1 - troweled side up - no visible sag or cracks<br /> Test 1, panel 2 - troweled side up - no visible sag or cracks<br /> Test 2, panel 1 - troweled side up - no visible sag or cracks<br /> Test 2, panel 2 - troweled side up - no visible sag or cracks<br /> Test 3, panel 1 - troweled side down - visible sag but no cracks<br /> Test 3, panel 2 - troweled side down - slight visible sag but no cracks<br /> Test 3, panel 1 - troweled side up - extreme sag and panel snapped along brick support<br /> Test 3, panel 2 - troweled side up - visible sag but no cracks<br /> <br /> Troweled side has 1/8&quot; less concrete on mesh<br /> <br /> '''Conclusions''' <br /> Both panels survived psi ratings for tank design (3.44 psi), however because troweled side has less concrete, it is a weaker side of panel in compression. Suggest using formed side as inside of tank, so that the troweled side will be in greater tension (more mesh, less concrete). <br /> Panel 2 with 2 layers of mesh seem to be stronger in all tests.<br /> <br /> I think these would do just fine as roof tiles or panels, especially if shaped to take advantage of concrete's compression strength. For a water tank, although they survived the psi required for an 8ft tall tank, I think more testing is required.<br /> <br /> '''More Information'''<br /> * [[:File:Ferrocement_panels_-_water_tank.pdf|LFC Panel Water Tank]]<br /> * [[:File:Ferrocement channels.pdf|LFC Channel Roof]]<br /> <br /> [[Category: Housing and construction]]</div>

Velacreations https://wiki.opensourceecology.org/index.php?title=Laminated_Ferrocement&diff=31253 2011-06-13T22:04:53Z

<p>Velacreations: </p> <hr /> <div>LFC<br /> <br /> <br /> '''LFC Tests on panels'''<br /> 6-13-2011 by Abe Connally, [http:www.velacreations.com]<br /> <br /> '''Panel 1''' - 1 layer 3/8&quot; hardware cloth, 36.5&quot; X 20.75&quot; - 757 si, 5.26 sf<br /> 5/16&quot; - 3/8&quot; thick<br /> Cured for 3 days<br /> 17lbs, 3.23 lbs/sf<br /> <br /> '''Panel 2''' - 2 layers 3/8&quot; hardware cloth, 36.5&quot; X 20.375&quot; - 744 si, 5.17 sf<br /> 3/8&quot; - 7/16&quot; thick<br /> Cured for 3 days<br /> 22lbs, 4.25 lbs/sf<br /> <br /> '''Tests''' - panels were placed on bricks, spaced 14&quot; apart. Weight was placed in center of panel, between brick supports.<br /> <br /> Test 1 - 1 gallon water @ 8lbs on 2.25 si, 3.55 psi<br /> Test 2 - 1 gallon water @ 8lbs on 1.5 si, 5.33 psi<br /> Test 3 - human @ 173 lbs on 46 si, 3.76 psi<br /> <br /> '''Results'''<br /> Test 1, panel 1 - troweled side up - no visible sag or cracks<br /> Test 1, panel 2 - troweled side up - no visible sag or cracks<br /> Test 2, panel 1 - troweled side up - no visible sag or cracks<br /> Test 2, panel 2 - troweled side up - no visible sag or cracks<br /> Test 3, panel 1 - troweled side down - visible sag but no cracks<br /> Test 3, panel 2 - troweled side down - slight visible sag but no cracks<br /> Test 3, panel 1 - troweled side up - extreme sag and panel snapped along brick support<br /> Test 3, panel 2 - troweled side up - visible sag but no cracks<br /> <br /> Troweled side has 1/8&quot; less concrete on mesh<br /> <br /> '''Conclusions''' <br /> Both panels survived psi ratings for tank design (3.44 psi), however because troweled side has less concrete, it is a weaker side of panel in compression. Suggest using formed side as inside of tank, so that the troweled side will be in greater tension (more mesh, less concrete). <br /> Panel 2 with 2 layers of mesh seem to be stronger in all tests.<br /> <br /> I think these would do just fine as roof tiles or panels, especially if shaped to take advantage of concrete's compression strength. For a water tank, although they survived the psi required for an 8ft tall tank, I think more testing is required.<br /> <br /> '''More Information'''<br /> * [[:File:Ferrocement_panels_-_water_tank.pdf|LFC Panel Water Tank]]<br /> * [[:File:Ferrocement channels.pdf|LFC Channel Roof]]<br /> <br /> [[Category: Housing and construction]]</div>

Velacreations https://wiki.opensourceecology.org/index.php?title=Laminated_Ferrocement&diff=31252 2011-06-13T22:04:06Z

<p>Velacreations: </p> <hr /> <div>LFC<br /> '''<br /> LFC Tests on panels''' - 6-13-2011 by Abe Connally, [http:www.velacreations.com|VelaCreations]<br /> <br /> '''Panel 1''' - 1 layer 3/8&quot; hardware cloth, 36.5&quot; X 20.75&quot; - 757 si, 5.26 sf<br /> 5/16&quot; - 3/8&quot; thick<br /> Cured for 3 days<br /> 17lbs, 3.23 lbs/sf<br /> <br /> '''Panel 2''' - 2 layers 3/8&quot; hardware cloth, 36.5&quot; X 20.375&quot; - 744 si, 5.17 sf<br /> 3/8&quot; - 7/16&quot; thick<br /> Cured for 3 days<br /> 22lbs, 4.25 lbs/sf<br /> <br /> '''Tests''' - panels were placed on bricks, spaced 14&quot; apart. Weight was placed in center of panel, between brick supports.<br /> <br /> Test 1 - 1 gallon water @ 8lbs on 2.25 si, 3.55 psi<br /> Test 2 - 1 gallon water @ 8lbs on 1.5 si, 5.33 psi<br /> Test 3 - human @ 173 lbs on 46 si, 3.76 psi<br /> <br /> '''Results'''<br /> Test 1, panel 1 - troweled side up - no visible sag or cracks<br /> Test 1, panel 2 - troweled side up - no visible sag or cracks<br /> Test 2, panel 1 - troweled side up - no visible sag or cracks<br /> Test 2, panel 2 - troweled side up - no visible sag or cracks<br /> Test 3, panel 1 - troweled side down - visible sag but no cracks<br /> Test 3, panel 2 - troweled side down - slight visible sag but no cracks<br /> Test 3, panel 1 - troweled side up - extreme sag and panel snapped along brick support<br /> Test 3, panel 2 - troweled side up - visible sag but no cracks<br /> <br /> Troweled side has 1/8&quot; less concrete on mesh<br /> <br /> '''Conclusions''' <br /> Both panels survived psi ratings for tank design (3.44 psi), however because troweled side has less concrete, it is a weaker side of panel in compression. Suggest using formed side as inside of tank, so that the troweled side will be in greater tension (more mesh, less concrete). <br /> Panel 2 with 2 layers of mesh seem to be stronger in all tests.<br /> <br /> I think these would do just fine as roof tiles or panels, especially if shaped to take advantage of concrete's compression strength. For a water tank, although they survived the psi required for an 8ft tall tank, I think more testing is required.<br /> <br /> '''More Information'''<br /> * [[:File:Ferrocement_panels_-_water_tank.pdf|LFC Panel Water Tank]]<br /> * [[:File:Ferrocement channels.pdf|LFC Channel Roof]]<br /> <br /> [[Category: Housing and construction]]</div>

Velacreations https://wiki.opensourceecology.org/index.php?title=Laminated_Ferrocement&diff=31251 2011-06-13T22:01:53Z

<p>Velacreations: </p> <hr /> <div>LFC<br /> '''<br /> LFC Tests on panels''' - 6-13-2011 by Abe Connally, http:www.velacreations.com<br /> <br /> '''Panel 1''' - 1 layer 3/8&quot; hardware cloth, 36.5&quot; X 20.75&quot; - 757 si, 5.26 sf<br /> 5/16&quot; - 3/8&quot; thick<br /> Cured for 3 days<br /> 17lbs, 3.23 lbs/sf<br /> <br /> '''Panel 2''' - 2 layers 3/8&quot; hardware cloth, 36.5&quot; X 20.375&quot; - 744 si, 5.17 sf<br /> 3/8&quot; - 7/16&quot; thick<br /> Cured for 3 days<br /> 22lbs, 4.25 lbs/sf<br /> '''<br /> Tests''' - panels were placed on bricks, spaced 14&quot; apart. Weight was placed in center of panel, between brick supports.<br /> <br /> Test 1 - 1 gallon water @ 8lbs on 2.25 si, 3.55 psi<br /> Test 2 - 1 gallon water @ 8lbs on 1.5 si, 5.33 psi<br /> Test 3 - human @ 173 lbs on 46 si, 3.76 psi<br /> <br /> '''Results'''<br /> Test 1, panel 1 - troweled side up - no visible sag or cracks<br /> Test 1, panel 2 - troweled side up - no visible sag or cracks<br /> Test 2, panel 1 - troweled side up - no visible sag or cracks<br /> Test 2, panel 2 - troweled side up - no visible sag or cracks<br /> Test 3, panel 1 - troweled side down - visible sag but no cracks<br /> Test 3, panel 2 - troweled side down - slight visible sag but no cracks<br /> Test 3, panel 1 - troweled side up - extreme sag and panel snapped along brick support<br /> Test 3, panel 2 - troweled side up - visible sag but no cracks<br /> <br /> Troweled side has 1/8&quot; less concrete on mesh<br /> <br /> '''Conclusions''' <br /> Both panels survived psi ratings for tank design (3.44 psi), however because troweled side has less concrete, it is a weaker side of panel in compression. Suggest using formed side as inside of tank, so that the troweled side will be in greater tension (more mesh, less concrete). <br /> Panel 2 with 2 layers of mesh seem to be stronger in all tests.<br /> <br /> I think these would do just fine as roof tiles or panels, especially if shaped to take advantage of concrete's compression strength. For a water tank, although they survived the psi required for an 8ft tall tank, I think more testing is required.<br /> <br /> '''More Information'''<br /> * [[:File:Ferrocement_panels_-_water_tank.pdf|LFC Panel Water Tank]]<br /> * [[:File:Ferrocement channels.pdf|LFC Channel Roof]]<br /> <br /> [[Category: Housing and construction]]</div>

Velacreations