Water Treatment Sludge in Cement: Mechanical and Chemical Analysis

A study by Elisandro Alexandre investigates the incorporation of water treatment plant sludge (ETA) into Portland cement (CP V-ARI). The research evaluates mechanical strength and hydrated compounds for cement pastes with 0%, 10%, and 20% sludge substitution using XRD, TG/DTG, SEM, and conduction calorimetry tests. Results show reduced compressive strength, especially at 7 days, and higher ettringite formation in sludge-containing samples.

Use Cases

• Predicting compressive strength reduction in cement based on sludge substitution percentage mentioned in the description
• Analyzing the formation of hydrated compounds like ettringite based on XRD and TG/DTG test results described
• Modeling the relationship between waste sludge incorporation and mechanical behavior of cementitious materials
• Assessing the environmental viability of waste valorization strategies for water treatment sludge

Strengths

• Experimental data includes three specific substitution levels (0%, 10%, 20%) for controlled comparison
• Multiple analytical techniques (XRD, TG/DTG, SEM, conduction calorimetry) provide complementary material characterization

Limitations

• Row count and dataset size are unknown, which may limit suitability assessment
• Column-level documentation is absent; field semantics must be inferred after download
• Last update date is unknown; freshness unverified

Provenance

Source

Elisandro Alexandre via paperswithcode

Collection Method

Laboratory experiments producing and testing Portland cement pastes with incorporated sludge.