Method of Recycled Concrete Admixture from Construction Waste

Amid rapid urbanization, the disposal of construction waste has emerged as a pressing issue. Transforming this waste into concrete admixtures not only addresses waste management challenges but also promotes resource recycling. This article delves into the preparation method of recycled concrete admixtures from construction waste, with a special emphasis on the pivotal role of grinding equipment.

Essential Equipment for Producing Recycled Concrete Admixtures from Construction Waste

The production of recycled concrete admixtures necessitates a suite of specialized equipment. Here are the key components:

Crushing Equipment: Construction waste initially undergoes sorting and classification. Subsequently, crushers such as jaw crushers and impact crushers are employed to break down the waste into particles of a specific size.

Screening Equipment: After crushing, vibrating or bar screens are used to sift the particles further, ensuring a uniform size distribution.

Grinding Equipment: The particles enter the grinding machinery. It is where the heart of the process lies, transforming the particles into finely textured powder. Grinding equipment, including vertical mills and Raymond mills, plays a crucial role in determining the final quality and yield of the admixture.

Process of Recycled Concrete Admixtures from Construction Waste

The preparation process involves several critical steps:

1. Sorting and Classification: Construction waste is first sorted to remove impurities like wood and plastic, ensuring smooth subsequent processing.
2. Crushing and Screening: Waste concrete and bricks are crushed to obtain particles of a specified size. These particles are then screened to achieve the desired size distribution.
3. Grinding Process: The screened particles are fed into the grinding equipment. By adjusting parameters such as mill speed and gap settings, the fineness and reactivity of the powder can be controlled, meeting the requirements for use as a concrete admixture.
4. Mix Proportion Design: Based on the performance requirements of the concrete and the characteristics of the powder derived from construction waste, the incorporation rate of the powder should not be too high to avoid compromising concrete performance. At the same time, the proportions of cement, sand, and aggregate are adjusted to ensure concrete strength and workability.
5. Mixing and Stirring: The powder, along with cement, sand, and aggregate, is mixed according to the designed proportion. The mixture is then poured into molds, vibrated, and cured to guarantee concrete quality.

The Significance of Grinding Equipment in the Preparation Process

Grinding equipment plays a vital role in recycling concrete admixtures from construction waste. It not only processes the crushed particles into finely textured powder but also allows for the control of powder fineness for meeting admixture standards.
Our grinding equipment is manufactured using advanced technology and superior materials, boasting efficiency, energy savings, and environmental friendliness. We prioritize equipment stability and durability, ensuring long-term operation. Furthermore, we offer comprehensive after-sales services, including technical support and equipment maintenance, to provide customers with unparalleled support. 

Conclusion

The recycled concrete admixtures from construction waste represent an innovative and feasible solution that promotes waste recycling and reduces concrete production costs. In this process, grinding equipment holds a pivotal position. Our grinding equipment, characterized by its efficiency, energy savings, and environmental friendliness, stands out as the ideal choice for producing recycled concrete admixtures. As we continue to innovate and advance our grinding equipment, MASCOT is committed to making even greater contributions to the sustainable development of the construction industry.