Cement - Revision history

Rjcord: /* Innovative Cement Technologies in Development */

2024-04-01T22:33:38Z

Innovative Cement Technologies in Development

Rjcord: /* Innovative Cement Technologies in Development */

2024-03-09T01:50:00Z

Innovative Cement Technologies in Development

Rjcord: /* Green Cement */

2024-03-09T01:47:27Z

Green Cement

Rjcord: /* Green Cement */

2024-03-09T01:46:19Z

Green Cement

Rjcord: /* Solida TechnonogiesTechnologies */

2024-03-09T01:41:51Z

Solida TechnonogiesTechnologies

Rjcord: /* Innovative Cement Technologies in Development */

2024-03-09T01:29:55Z

Innovative Cement Technologies in Development

Rjcord: /* CarbonCure Technologies */

2024-02-05T20:59:24Z

CarbonCure Technologies

Rjcord: /* Reducing CO2 Emissions */

2024-02-05T20:56:23Z

Reducing CO2 Emissions

Rjcord: /* Reducing CO2 Emissions */

2024-02-05T20:45:29Z

Reducing CO2 Emissions

Rjcord: /* Innovative Cement Technologies in Development */

2024-02-05T20:38:43Z

Innovative Cement Technologies in Development

← Older revision		Revision as of 22:33, 1 April 2024
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	= Innovative Cement Technologies in Development =		= Innovative Cement Technologies in Development =
		+
		+	=== Brimstone ===
		+	[https://www.brimstone.com/technology%20Technology Brismtone] a California startup, claims to make cement from carbon-free calcium silicate rocks, eliminating these process emissions from the start. Calcium silicate rocks are abundant and voluminous at the surface of every continent in the world.
		+
		+	:[https://www.cbsnews.com/news/cement-industry-co2-emissions-climate-change-brimstone/ Cement industry accounts for about 8% of CO2 emissions. One startup seeks to change that.] - CBS News - January 2023.

	=== Sublime Systems Electrochemical Cement===		=== Sublime Systems Electrochemical Cement===

@@ Line 34: / Line 34: @@
 = Innovative Cement Technologies in Development =
-== Sublime Systems Electrochemical Cement==
+=== Sublime Systems Electrochemical Cement===
 Sublime Systems are developing an electrochemical process to produce lime (CaO) at room temperature using renewable energy and no carbon emissions.
 :[https://medium.com/@SublimeSystems/can-you-make-zero-carbon-cement-476d73892656 Cement made at ambient temperature, using renewable electricity, for a decarbonized future] - Ellis and Chiang - Medium, January 18, 2023
-== Swinburne University ==
+=== Swinburne University ===
 :[https://newatlas.com/materials/cement-free-bendable-concrete/ Bendable concrete goes cement-free to cut environmental footprint] - New Atlas - Michael Irving - March 03, 2020
 :[https://interestingengineering.com/bendable-green-and-cement-free-concrete-created-to-better-withstand-earthquakes Bendable, Green, and Cement-Free Concrete Created to Better Withstand Earthquakes] - Interesting Engineering - Loukia Papadopoulos - March 05, 2020
-== Solida TechnonogiesTechnologies  ==
+=== Solida Technonogies  ===
 URL: [https://solidiatech.com/ https://solidiatech.com/]
-''“At scale, each year Solidia’s technologies will be able to reduce:''
+''“At scale, each year Solidia’s Technologies will be able to reduce:''
 * ''the carbon footprint of concrete by up to 70%, equaling 1.5 gigatonnes or ~4% of the world’s CO<sub>2</sub>&nbsp;emissions, with the potential to do more;''
@@ Line 56: / Line 56: @@
 Using a proprietary cement that’s not Portland they cure concrete blocks in 100% CO<sub>2</sub> chambers. The CO<sub>2</sub> comes from sources that would otherwise be vented to the atmosphere. So this reduces emissions. Such precast concrete can be 15-50% of the local market.
-== CarbonCure Technologies ==
+=== CarbonCure Technologies ===
 URL: [https://www.carboncure.com/ https://www.carboncure.com/]
 Like Solida CarboCure aims to cure concrete blocks in 100% CO<sub>2</sub> chambers but with regular Portland cement. The CO<sub>2</sub> comes from sources that would otherwise be vented to the atmosphere thus reducing emissions.
-== Calix Cement and Lime ==
+=== Calix Cement and Lime ===
 URL: [https://www.calix.global/industries/industry-cement-lime/ https://www.calix.global/industries/industry-cement-lime/]
 Their kilns separate the limestone from the source of heat (fired natural gas instead of commonly used coal) and separately captures the CO<sub>2 </sub>for other uses, e.g. for CarbonCure concrete.
-== Carbicrete ==
+=== Carbicrete ===
 URL: [http://carbicrete.com/ http://carbicrete.com/]
 Uses slag a byproduct of steel-making instead of limestone to make ‘cement-free’ concrete.

@@ Line 30: / Line 30: @@
 :''Growing environmental concerns and the increasing cost of fuels of fossil origin have resulted in many countries in a sharp reduction of the resources needed to produce cement and effluents (dust and exhaust gases). ''
-''A team at the&nbsp;[https://en.wikipedia.org/wiki/University_of_Edinburgh University of Edinburgh]&nbsp;has developed the 'DUPE' process based on the microbial activity of&nbsp;[https://en.wikipedia.org/wiki/Sporosarcina_pasteurii Sporosarcina pasteurii], a bacterium precipitating calcium carbonate, which, when mixed with&nbsp;[https://en.wikipedia.org/wiki/Sand sand]&nbsp;and&nbsp;[https://en.wikipedia.org/wiki/Urine urine], can produce mortar blocks with a compressive strength 70&nbsp;% of that of conventional construction materials.”''
+:''A team at the [https://en.wikipedia.org/wiki/University_of_Edinburgh University of Edinburgh]&nbsp;has developed the 'DUPE' process based on the microbial activity of&nbsp;[https://en.wikipedia.org/wiki/Sporosarcina_pasteurii Sporosarcina pasteurii], a bacterium precipitating calcium carbonate, which, when mixed with&nbsp;[https://en.wikipedia.org/wiki/Sand sand]&nbsp;and&nbsp;[https://en.wikipedia.org/wiki/Urine urine], can produce mortar blocks with a compressive strength 70&nbsp;% of that of conventional construction materials.”''
 = Innovative Cement Technologies in Development =

@@ Line 24: / Line 24: @@
 From Wikipedia on [https://en.wikipedia.org/wiki/Cement Cement]
-''“Green cement is a cementitious material that meets or exceeds the functional performance capabilities of ordinary Portland cement by incorporating and optimizing recycled materials, thereby reducing consumption of natural raw materials, water, and energy, resulting in a more sustainable construction material.''
+:''“Green cement is a cementitious material that meets or exceeds the functional performance capabilities of ordinary Portland cement by incorporating and optimizing recycled materials, thereby reducing consumption of natural raw materials, water, and energy, resulting in a more sustainable construction material.''
-''New manufacturing processes for producing green cement are being researched with the goal to reduce, or even eliminate, the production and release of damaging pollutants and greenhouse gasses, particularly CO<sub>2</sub>. ''
+:''New manufacturing processes for producing green cement are being researched with the goal to reduce, or even eliminate, the production and release of damaging pollutants and greenhouse gasses, particularly CO<sub>2</sub>. ''
-''Growing environmental concerns and the increasing cost of fuels of fossil origin have resulted in many countries in a sharp reduction of the resources needed to produce cement and effluents (dust and exhaust gases). ''
+:''Growing environmental concerns and the increasing cost of fuels of fossil origin have resulted in many countries in a sharp reduction of the resources needed to produce cement and effluents (dust and exhaust gases). ''
 ''A team at the&nbsp;[https://en.wikipedia.org/wiki/University_of_Edinburgh University of Edinburgh]&nbsp;has developed the 'DUPE' process based on the microbial activity of&nbsp;[https://en.wikipedia.org/wiki/Sporosarcina_pasteurii Sporosarcina pasteurii], a bacterium precipitating calcium carbonate, which, when mixed with&nbsp;[https://en.wikipedia.org/wiki/Sand sand]&nbsp;and&nbsp;[https://en.wikipedia.org/wiki/Urine urine], can produce mortar blocks with a compressive strength 70&nbsp;% of that of conventional construction materials.”''

@@ Line 54: / Line 54: @@
 * ''…while transforming CO<sub>2</sub>&nbsp;into a valuable commodity.”''
-Using a proprietary cement that’s not Portland they cure concrete blocks in 100% CO<sub>2 </sub>chambers. The CO<sub>2 </sub>comes from sources that would otherwise be vented to the atmosphere. So this reduces emissions. Such precast concrete can be 15-50% of the local market.
+Using a proprietary cement that’s not Portland they cure concrete blocks in 100% CO<sub>2</sub> chambers. The CO<sub>2</sub> comes from sources that would otherwise be vented to the atmosphere. So this reduces emissions. Such precast concrete can be 15-50% of the local market.
 == CarbonCure Technologies ==

@@ Line 1: / Line 1: @@
 [[Category:Solutions]]
-= Reducing CO2 Emissions =
+= What is important about Cement =
 Worldwide, cement manufacturing currently generates 8% of global warming CO<sub>2</sub> emissions as reported in:
 :[https://www.chathamhouse.org/2018/06/making-concrete-change-innovation-low-carbon-cement-and-concrete Making Concrete Change: Innovation in Low-carbon Cement and Concrete] - Chatham House - June 2018
 :''"To bring the cement sector in line with the Paris Agreement on climate change, its annual emissions will need to fall by at least 16 per cent by 2030."''
 Solar Cement Processing (5% anthropogenic C0<sub>2</sub> Source, also George Washington University, 2012)
 :[https://phys.org/news/2012-04-solar-thermal-cement-carbon-dioxide.html "Solar thermal process produces cement with no carbon dioxide emissions"] - Phys.org - Lisa Zyga - April 10, 2012
 Reinventing Cement report
 :[http://www.anthropocenemagazine.org/cement/ "The Race to Reinvent Cement"] - Anthopocene Magazine - Akshat Rathi - 2017