Skip to main content
Log in

Sustainable utilization of incinerated paper mill sludge ash for the manufacture of building bricks

  • Original Paper
  • Published:
Clean Technologies and Environmental Policy Aims and scope Submit manuscript

Abstract

Fly ash–lime–gypsum bricks are an environmentally friendly and energy-efficient alternative to burnt clay bricks. Nowadays, the scarcity of fly ash and lime adversely affects the production of fly ash bricks. To mitigate this, the current study examines incinerated paper mill sludge ash as a supplement to fly ash and lime. In the current study, in blend 1, coal fly ash is replaced by incinerated paper mill sludge ash (2.5–30 wt%), and in blend 2, lime is completely replaced by incinerated paper mill sludge ash (2.5–15 wt%). Based on Indian standards, bricks were tested for compressive strength, water absorption, weight density, percentage voids, efflorescence, drying shrinkage, dynamic modulus of elasticity, and impact energy. Before developing bricks, the materials have to be examined by X-ray diffraction, X-ray fluorescence, Fourier transform infrared spectroscopy, thermogravimetry differential thermal analysis, and scanning electron microscope techniques. Results from X-ray diffraction showed that higher replacement of incinerated paper mill sludge ash does not produce any phase transformation and merely improves porosity, which reduces weight. Higher replacement of incinerated paper mill sludge ash leads to a reduction in strength and a higher water requirement. The study found that incorporating incinerated paper mill sludge ash at replacement 2.5–15 wt% in blend 1 and 2.5–5 wt% in blend 2 satisfied the building brick requirements. By incorporating incinerated paper mill sludge ash into bricks, the brick industry can produce sustainable bricks that utilize resources effectively.

Graphical Abstract

Graphical abstract illustrating the reuse of incinerated paper mill sludge ash in the manufacturing of building bricks to minimize the demand for fly ash and lime. The visual shows the drawbacks of paper mill sludge in land dumping, the suggested methodology for reusing incinerated paper mill sludge ash to minimize environmental degradation, improved sustainability through waste utilization, its benefits, and the characterization of bricks.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13

Similar content being viewed by others

Data availability

The datasets produced and analyzed in this study are available upon reasonable request from the corresponding author.

References

Download references

Acknowledgements

Not Applicable.

Funding

Not Applicable.

Author information

Authors and Affiliations

Authors

Contributions

Balaji Govindan was involved in the conceptualization, methodology, investigation, and writing—original draft. Vidhya Kumarasamy contributed to the supervision, resources and corrected and reviewed the manuscript.

Corresponding author

Correspondence to Balaji Govindan.

Ethics declarations

Conflict of interest

The authors declare no conflict of interest.

Ethical approval

This article does not contain any studies with human participants or animals performed by any authors.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Supplementary Information

Below is the link to the electronic supplementary material.

Supplementary file1 (DOCX 324 KB)

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Govindan, B., Kumarasamy, V. Sustainable utilization of incinerated paper mill sludge ash for the manufacture of building bricks. Clean Techn Environ Policy 25, 2655–2673 (2023). https://doi.org/10.1007/s10098-023-02515-1

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10098-023-02515-1

Keywords

Navigation