东京大学：用废弃混凝土和二氧化碳制成的新型建筑材料：碳酸钙混凝土
世界二氧化碳排放量：
世界上 7% 的二氧化碳排放量来自水泥制造和使用。
混凝土的主要成分是水泥。
混凝土作为建筑材料非常有用，
将来会需要它。
水泥生产问题：
水泥生产过程中不可避免地会排放二氧化碳。
减少二氧化碳排放已成为建筑行业的一个主要问题。
Maruyama 等人认为，“相反，我们可以通过利用大气中的 CO2 来制造具体的替代品吗？”
东京大学研究生院
丸山一平教授
东京大学的研究小组
解决环境问题
来自废弃混凝土和二氧化碳
可以制造新型建筑材料，
我们开发了一种减少二氧化碳的技术。
研究详情：
它发表在 10 月 8 日的科学期刊《先进混凝土技术杂志》上。
颌骨学
https://nazology.net/archives/97883
A concrete solution | A new kind of concrete could reduce emissions from the construction industry.
Calcium carbonate concrete
is made from waste concrete and carbon dioxide from the air or industrial exhaust gases.It shows promise as a future construction material, especially in places where natural resources are limited
A new way to reduce emissions levels caused by concrete use
has been proposed and proven to work by Professor Ippei Maruyama and C4S (Calcium Carbonate Circulation System for Construction) project manager Professor Takafumi Noguchi, both from the Department of Architecture at the University of Tokyo.
They have found a way
to take waste concrete and captured carbon dioxide, and combine them in a novel process into a usable form of concrete called calcium carbonate concrete.
Inspired by the way some aquatic organisms harden into fossils over time,
Maruyama wondered if the same process that forms hard calcium carbonate deposits from dead organic matter could be applied to concrete.
Calcium is essential for the reaction between cement and water to form concrete,
and Maruyama saw this as an opportunity to investigate a less carbon-intensive way of performing the same function.
The University of Tokyo
https://www.u-tokyo.ac.jp/focus/en/press/z0508_00190.html#
A New Concept of Calcium Carbonate Concrete using Demolished Concrete and CO2
https://www.jstage.jst.go.jp/article/jact/19/10/19_1052/_article