# ERI: Experimental Study of Grain-scale Mechanics in Bonded Sands

> **NSF 01002526DB NSF RESEARCH & RELATED ACTIVIT** · Michigan Technological University (MI) · $199,638

## Abstract

This Engineering Research Initiation (ERI) award supports research to investigate the micromechanical behavior of sand grain pairs bonded with different cementing agents. Bonded granular materials, where particles are bound by cementing agents, are widely present in applications such as infrastructure rehabilitation, ground improvement, liquefaction resistance, and erosion control. Conventional geotechnical laboratory tests often exhibit uncertainties in the loading and strength responses of bonded soils due to variations in cementation type and content. They also lack the resolution needed to capture the underlying micromechanical responses that govern material behavior. This project seeks to address these gaps through systematic laboratory experiments and microscopic observations at the scale of individual grains, focusing on the effects of cement type, particle characteristics, and loading conditions on influencing bond strength and failure mechanisms. Improved understanding of grain-scale mechanics in bonded soils will advance fundamental knowledge, support the design of effective soil stabilization strategies, and contribute to the resilience of the nation’s civil infrastructure. The research also looks to support education and outreach through curriculum development, demonstrations of cementation-based soil treatment, and outreach activities through Michigan Tech’s Summer Youth Programs. Data produced from this project will be archived and made publicly accessible throu

## Key facts

- **NSF award ID:** 2501898
- **Awardee organization:** Michigan Technological University (MI)
- **SAM.gov UEI:** GKMSN3DA6P91
- **PI:** Sai Sandeep Chitta
- **Primary program:** 01002526DB NSF RESEARCH & RELATED ACTIVIT
- **All programs:** CIVIL INFRASTRUCTURE, Geomechanics, RESEARCH INITIATION AWARD
- **Estimated total:** $199,638
- **Funds obligated:** $199,638
- **Transaction type:** Standard Grant
- **Period:** 09/01/2025 → 08/31/2027

## Primary source

NSF Award Search: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2501898

## Citation

> US National Science Foundation, Award 2501898, ERI: Experimental Study of Grain-scale Mechanics in Bonded Sands. Retrieved via AI Analytics 2026-06-08 from https://api.ai-analytics.org/grant/nsf/2501898. Licensed CC0.

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