Development of Aggregate Industry in Japan

2021-07-06 10:49:24

In Japan, 70% of aggregate is used for concrete and 30% is used for road and track bed, reaching the peak of demand in 1990, and then declining all the way to the lowest level in history after the peak of demand in 2020.

1. Classification

of aggregates in Japan Japan divides aggregates into five categories: gravel, natural sand (river sand, land sand, mountain sand and sea sand); crushed stone and crushed sand; limestone for concrete; artificial aggregate (with blast furnace slag and fly ash as the main raw materials); recycled aggregate (with construction waste as the main raw material). According to the particle size, it is divided into coarse aggregate (5mm mesh screen, more than 85% retention) and fine aggregate (5mm mesh screen, more than 85% pass).

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Correlation

Development of Aggregate Industry in Japan

2021-07-06 10:49:24

CEMPI

95.31

+0.2 +0.21%

CONCPI

89.44

-0.21 -0.23%

CLKPI

97.71

+0.49 +0.50%

SPPI

44.78

-0.13 -0.29%

MORPI

73.32

0.00 0.00%

50% reduction in CO2 emissions per ton of product! Yatai Building Materials Group completed the first production of green low-carbon solid waste cementitious materials

At present, under the guidance of the national "double carbon" strategy, the pace of green transformation of building materials industry continues to accelerate, and the traditional high energy consumption and high pollution production capacity is accelerating iterative upgrading. Relying on the research and development platform of the national enterprise technology center, Yatai Building Materials Group jointly carried out research and development in universities, focusing on the direction of green low-carbon solid waste-based cementitious materials to promote in-depth research and development. In May 2026, in the 3 # ultra-fine grinding production line of Yatai Building Material Yitong Company, the first production of green low-carbon solid waste-based cementitious materials was completed, and the carbon dioxide emissions per ton of products were reduced by 50% compared with traditional cement.