Optimization and Modelling of the Physical and Mechanical Properties of Grass Fiber Reinforced with Slag-Based Composites Using Response Surface Methodology.

As shown in Table 5 through 7, the p -values of the regression models are all less than 0.0001, indicating that the regression models are statistically significant and highly significant.

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The compressive strength of the samples shows a clear trend: it gradually decreases with the increase in grass size or grass content.

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