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Purpose <p>Alumino-silicate(geo)polymer (ASP) has created a better alternative to conventional concrete and is being under continuous study owing to the environmental benefits. However, the ASP mortar possesses certain constraints of poor workability, whereas the workability and mechanical properties are inversely proportional to each other. On the other hand, a large amount of cellulose pulp filtrate (liquor waste) is generated from the pulp industries, which pollutes/exploits the land. To overcome the above issues, the present study aimed to utilize the cellulose pulp filtrate waste in the formulation of ASP mortar to study its influences in terms of workability and mechanical properties.</p> Methods <p>The ASP mortar was developed by using fly-ash, a combination of sodium hydroxide and sodium silicate at a ratio of 1:2.5 along with different admixtures (systems 1–5) viz., liquor waste, NaOH, water, and anti-microbial (AM) filtrate. The physio-mechanical and anti-microbial properties of ASP mortars were studied.</p> Results <p>From the analysis, the addition of cellulose pulp filtrate proportionating the workability by improving the slump value (28&#xa0;mm) as well as enhancing the mechanical properties like compressive strength (37.74&#xa0;MPa), and flexural strength (5.30&#xa0;MPa) of about 1.5 times higher than the control.</p> Conclusion <p>The present study paves an avenue to overcome the constraints of the ASP mortar by utilizing liquor waste, which also could provide zero discharge/wastage from pulp manufacturing industries.</p>

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Formulation of Alumino-Silicate Polymer Mortar Using a Liquor Waste from Pulp Industries

  • 期刊论文

  • 发表日期：

    2025年4月18日

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  • Arun Murugesan,
  • Sasikumar Ramachandran,
  • Abdul Aleem Mohamed Ismail,
  • Alagar Muthukaruppan,
  • Deepasree Srinivasan

摘要

Purpose

Alumino-silicate(geo)polymer (ASP) has created a better alternative to conventional concrete and is being under continuous study owing to the environmental benefits. However, the ASP mortar possesses certain constraints of poor workability, whereas the workability and mechanical properties are inversely proportional to each other. On the other hand, a large amount of cellulose pulp filtrate (liquor waste) is generated from the pulp industries, which pollutes/exploits the land. To overcome the above issues, the present study aimed to utilize the cellulose pulp filtrate waste in the formulation of ASP mortar to study its influences in terms of workability and mechanical properties.

Methods

The ASP mortar was developed by using fly-ash, a combination of sodium hydroxide and sodium silicate at a ratio of 1:2.5 along with different admixtures (systems 1–5) viz., liquor waste, NaOH, water, and anti-microbial (AM) filtrate. The physio-mechanical and anti-microbial properties of ASP mortars were studied.

Results

From the analysis, the addition of cellulose pulp filtrate proportionating the workability by improving the slump value (28 mm) as well as enhancing the mechanical properties like compressive strength (37.74 MPa), and flexural strength (5.30 MPa) of about 1.5 times higher than the control.

Conclusion

The present study paves an avenue to overcome the constraints of the ASP mortar by utilizing liquor waste, which also could provide zero discharge/wastage from pulp manufacturing industries.