2013
DOI: 10.1007/s11431-013-5221-6
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Characteristics of two types of C-S-H gel in hardened complex binder pastes blended with slag

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Cited by 41 publications
(10 citation statements)
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“…For the new cement, the adhesive forces of LD C‐S‐H, Other products and HD C‐S‐H were intermediate, i.e., 30 to 50 nN (mean values). Lower adhesive forces in LD C‐S‐H was probably because the low packing density makes the microstructure of LD C‐S‐H more porous, resulting in less effective contact to steel microspheres than those of HD C‐S‐H. For the old cement, carbonation was essential to the adhesive properties of different hydrate products.…”
Section: Discussionmentioning
confidence: 99%
“…For the new cement, the adhesive forces of LD C‐S‐H, Other products and HD C‐S‐H were intermediate, i.e., 30 to 50 nN (mean values). Lower adhesive forces in LD C‐S‐H was probably because the low packing density makes the microstructure of LD C‐S‐H more porous, resulting in less effective contact to steel microspheres than those of HD C‐S‐H. For the old cement, carbonation was essential to the adhesive properties of different hydrate products.…”
Section: Discussionmentioning
confidence: 99%
“…Details about the instrument and the experimental setup have been presented elsewhere [16]. Maximum indentation depth was set at 200 nm in accordance to restrictions to satisfy the separability scale condition (d/10 << h max << D/10, d and D stand for the characteristic sizes of the largest heterogeneity) of cement phases [17,29,32,38]. Prior to indentation, the area function of the indenter tip was calibrated in a fused silica, a standard material for this purpose.…”
Section: Grid Nanoindentationmentioning
confidence: 99%
“…where E r is the reduced elastic modulus in GPa, p i is the peak value of probability for each individual phase, s i is the skew of the fitting curve, E m,i is the mean reduced elastic modulus value of each individual phase, and d i is the width, an input value correlated to deviation from the mean value for each phase. The phases have been identified by the use of nanoindentation to plot histograms of material parameters as for instance E r or H [3,7,15,17,29,31,[37][38][39]43] and by using the number of peaks in the density plot to manually select the number of phases to deconvolute (Figure 4a) [3,29,32,43].…”
Section: Probability Distribution Analysis-pdamentioning
confidence: 99%
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“…When the SF content was 10%, more low-density C-S-H gels were formed [27], resulting in higher drying shrinkage; thus, a maximum drying shrinkage at 56 days was observed. However, when the SF content was more than 10%, some of the SF particles did not participate in the hydration reaction, thereby filling in the AAM pores and, ultimately, reducing the drying shrinkage.…”
Section: Effects Of Sf and Ns On Drying Shrinkagementioning
confidence: 99%