Chinese scientists have invented a new type of building cementitious material
imitating geodiagenesis - "curd". Compared with ordinary cement, this kind of
"stone" formed by grinding various industrial wastes such as metallurgical slag,
fly ash and coal gangue is very prominent in many aspects, such as strength,
density, corrosion resistance, production cost and cleaner production.
"Condensed stone" technology is a research achievement of the national high and
new technology research and development plan (i.e. 863 plan). This high-tech
with completely independent intellectual property rights, invented by Professor
Sun Henghu of Tsinghua University, has obtained a number of national patents.
This technology has passed the project appraisal hosted by the Ministry of
education on the 12th. In the next step, it will be submitted to the competent
department of the National 863 plan for acceptance.
Geological research shows that natural volcanic ash and other substances can
be transformed into long-term stable aluminosilicate rocks through sedimentation
and metamorphism under normal temperature and pressure. Based on the principle
of geodiagenesis, the "solidified stone" technology takes various industrial
wastes (such as metallurgical slag, fly ash, coal gangue, red mud and other
industrial solid wastes) as the main raw materials and a small amount of
diagenetic agent to produce a new type of high-performance building material -
silicon aluminum based cement products under normal temperature and
pressure.
Experts believe that "coagulated stone" has many advantages compared with
ordinary cement, such as "cold operation" in the production process, energy
saving and no carbon dioxide emission; The production process greatly reduces
smoke and dust, does not damage natural resources and does not pollute the
environment; The strength, density, corrosion resistance and freeze-thaw
resistance of "condensed stone" concrete are excellent; With various waste
residues as raw materials, "slag consumption" can reach more than 90%, which is
a more effective method to treat waste residues; Low production cost, simple
process, etc.
Web site to
