Table 5 Optimization TiO2 results.

From: Optimization of durability characteristics of engineered cementitious composites combined with titanium dioxide as a nanomaterial applying RSM modelling

Factors

Input factors

Responses (output factors)

TiO2 (%)

PVA (%)

CS (MPa)

TS (MPa)

AP (%)

RCPT (Coulombs)

Sulphate attack

Acid attack

Expansion (%)

CS (MPa)

Wt. loss (%)

CS

pH

Value

 Min.

1

1

39.40

3.625

12

968

0.0038

37.71

6

36.24

9.48

 Max.

2

2

62

5.46

20

1680

0.0072

60.14

10

58.90

10.75

Goal

Range

Range

Max

Max

Min

Min

Min

Max

Min

Max

Min

Optimization Results

1.489

1

62.30

5.62

12.08

913.01

0.0036

60.43

6.22

58.72

9.88

Desirability

95.10% (0.951)

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