CLSM (CONTROLLED LOW STRENGTH MATERIAL)

What is CLSM

Controlled Low Strength Material (CLSM) is a mixture of cement, fly ash, aggregates, and water in specified proportions, with the option of using chemical admixtures when necessary.

The applications of CLSM include:

Controlled Low Strength Material (CLSM) is utilized extensively in public infrastructure projects by governmental bodies in recent years. This innovative material, characterized by its self-compacting properties and cementitious strength, serves to address deficiencies in traditional backfill materials, particularly in road sub-base applications, by meeting the demands for load-bearing capacity. Its attributes, including non-compaction, high fluidity, and controllability, have positioned it as a viable substitute for conventional well-graded aggregates. CLSM finds widespread use in backfilling operations associated with excavation for pipelines and trenches.

CLSM's compressive strength at 28 days, as per engineering specifications and supervisory directives, typically ranges from 20 to 90 kgf/c㎡, ensuring it can withstand vehicular loads while remaining easily excavatable by manual or mechanical means. Widely employed in backfilling operations for excavation projects by entities such as water utilities, Taiwan Power Company, water resources bureaus, and the Public Works Department, CLSM effectively addresses historical challenges in road backfilling and surface leveling.

CLSM Engineering Characteristics

Features and Functions of CLSM

01.Rapid Construction, No Need for Layered Compaction, Stable Settlement
02.Comparable Cost to Traditional Aggregate Fill Materials
03.Substitutes Natural Aggregate Materials and Facilitates Excavation
04.Waste Material Recycling and Maintenance of Earthwork Balance

Awarded the Ministry of Environment's "Carbon Footprint Label"

In active response to the national net-zero emissions policy, Revival Environmental Industry Co., Ltd. announced today that its core product, Controlled Low-Strength Material (CLSM), officially passed the Ministry of Environment's review on April 21, 2026, and successfully obtained the Carbon Footprint Label certification. Through independent greenhouse gas inventories and strict verification, the carbon footprint of this product is only 73 kgCO2e per cubic meter, setting the record for the lowest carbon emissions among peers nationwide. This achievement demonstrates Revival Environmental Industry's outstanding capabilities in the fields of low-carbon building materials and the circular economy.

Awarded the Ministry of the Interior's "Green Building Material Label"

After nearly two years of rigorous review, the product was officially approved by the Ministry of the Interior on May 6, 2026, leading the industry in obtaining the "Green Building Material Label." Earlier, on February 10, 2026, the Taiwan Architecture & Building Center (TABC) dispatched personnel to conduct a strict on-site inspection. They carried out a comprehensive audit focusing on key areas including raw material sources, production processes, quality management, and the proportion of recycled materials used. Ultimately, the product successfully passed the certification by meeting the highest standards. Obtaining the Ministry of the Interior's Green Building Material Label is not only a recognition of Revival Environmental Industry's product quality and technological innovation, but it also represents a major milestone for the company in promoting the circular economy and sustainable development.