Studying the Properties of Chromium-Contaminated Soil Solidified by Polyurethane.

Polymers (Basel) · 2023 · PMC10181012 · PMID 37177264

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an increasing trendno p-value reported

Change in Sample Strength with Dosage of PU From Figure 6 , we can see that when the content of the chromium ion is 2000 mg/kg and the curing times are 1, 3, 5 and 7 days, the curves have an increasing trend.

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a decreasing trendno p-value reported

The other four curves show a decreasing trend, which indicates that the amount of chromium ion leaching gradually decreases with the increase in the sample curing time.

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