A lawn based on lake sediment and its construction method and application

By using a combination of high-pore asphalt concrete and lake bottom sediment matrix with rice husk ash, decomposed straw, and microbial agents in lawns, the problems of hard lawn substrate and environmental pollution were solved, achieving high load-bearing capacity and ecological restoration effects.

CN121369163BActive Publication Date: 2026-07-10MENGCAO (ALXA) DESERT ECOLOGICAL TECHNOLOGY CO LTD +2
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Patent Information

Application Number
CN202511951723.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-12-23
Publication Date
2026-07-10
Estimated Expiration
2045-12-23

AI Technical Summary

Technical Problem

Existing turf substrates are hard and lack sufficient cushioning, which affects plant growth. Furthermore, traditional turf materials cause serious environmental pollution, and lake bottom sediment is not effectively utilized.

Method used

Large-pore asphalt concrete is used as the load-bearing layer, and asphalt is used to coat rounded stones to form a mixture. Lake bottom mud is used as the matrix and buffer layer, combined with a mixture of rice husk ash, decomposed straw and microbial agents to promote plant growth.

Benefits of technology

It achieves high load-bearing capacity and buffering capacity of the lawn, reduces environmental pollution, promotes plant root growth, improves lake water quality, and realizes resource utilization and ecological restoration.

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Abstract

This invention provides a turfgrass based on lake sediment, its construction method, and its application, belonging to the field of urban ecological engineering and environmental engineering. The establishment method is as follows: S1, Base layer laying: The lake sediment is screened for particles, and sediment with particles >30mm is used as the base layer; S2, Load-bearing layer laying: Asphalt concrete is laid on the base layer as the load-bearing layer, which is composed of asphalt-coated rounded pebbles; S3, Buffer layer laying: 4-5 weeks after the load-bearing layer is laid, lake sediment with particles smaller than 30mm is laid on the load-bearing layer as a buffer layer; S4, Planting layer construction: Turfgrass seeds are sown, and the turfgrass seeds are selected from at least one of ryegrass or bermudagrass. This invention uses lake sediment as the main planting substrate, realizing waste-to-waste treatment, which not only reduces the cost of sediment disposal, but also provides a safe, economical, and feasible path for lake pollution control and ecological restoration.
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Citation Information

Patent Citations

  • River and lake bottom mud based artificial soil and backfilling method

    CN118851690A

  • Surface covering for forming e.g. golf path, has bituminous concrete presenting openings between its constituents with maximum air space ratio value, and vegetal grout placed over bituminous concrete

    FR2895751A1