Chinese | EN
Recycling and Utilization of Solid Waste
We focus on sinter-free reuse of solid wastes like construction spoil, shield tunneling slurry, dredged sludge, tailings, and furnace slag.
• Dredged sludge is made into planting soil, engineering soil, and sinter-free bricks.
• Construction spoil and tunneling slurry are converted into engineering soil and precast blocks for projects.
• Fly ash and furnace slag are mixed to produce geopolymer materials for soil stabilization and marine engineering.
• Treated tailings are used for mine backfill and building materials.
China Ecological Environment Status Bulletin

2In 2024, the nationwide generation of general industrial solid waste reached 4.47 billion tons, including approximately 1.4 billion tons of tailings and about 3.5 billion tons of construction waste. The total consumption of sand and gravel materials nationwide was 13.689 billion tons, and cement production amounted to 1.825 billion tons.

Source: Ministry of Ecology and Environment, 2024

Pilot Work Plan for the Construction of “Zero-Waste Cities”

Promote the preparation of sand and gravel aggregates, ceramsite, dry-mixed mortar, and other alternative sand materials from mining waste rock, and explore the use of tailings in ecological and environmental management.

Encourage multi-industry collaborative utilization, advancing the deep integration of bulk solid waste comprehensive utilization industries with downstream sectors such as construction, building materials, municipal works, transportation, and environmental remediation.

Source: General Office of the State Council, 2018

Guiding Catalogue for Industrial Structure Adjustment

Encourage the resource utilization of mine tailings, construction waste, industrial waste, and sludge from rivers, lakes, canals, and seas for building materials.

Source: National Development and Reform Commission, 2019

Guiding Opinions on the Comprehensive Utilization of Bulk Solid Waste during the 14th Five-Year Plan

Give priority to the use of comprehensive utilization products made from bulk industrial solid waste and other raw materials, and promote the application of new wall materials and other green building materials.

Jointly issued by the National Development and Reform Commission and eight other ministries, 2021

  • This situation reflects, on one hand, the depletion of natural resources, and on the other hand, the challenges in managing and disposing of industrial solid waste.
    Urban solid waste accumulates in vast quantities.
    This situation reflects, on one hand, the depletion of natural resources, and on the other hand, the challenges in managing and disposing of industrial solid waste.
  • Non-sintered paving bricks made entirely from solid
    Recycled building materials
    Non-sintered paving bricks made entirely from solid
The comprehensive resource utilization of solid waste is a mandatory approach for the sustainable advancement of the building materials industry.