Dry Shrinkage and Durability Performance of Cement Stabilized Graded Stone with Framework and Dense Structure

Cui, Kai; Li, Wei

doi:10.1590/1980-5373-mr-2015-0204

Cited by 3 publications

(2 citation statements)

References 7 publications

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“…The correspondingly dry shrinkage strain and dry shrinkage coefficient were measured and calculated in Tab. 4. With the increasing of cement content in mixes, The correspondingly dry shrinkage strain and dry shrinkage coefficient were increased in a certain extent.…”

Section: Dry Shrinkage Testmentioning

confidence: 92%

Dry Shrinkage and Frost Resistance Performance of Cement Stabilized Aggregate Materials

Zhang

2023

AETR

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In this paper, the mechanical, dry shrinkage and frost resistance performance of cement stabilized aggregate materials were investigated. Furthermore, the nonlinear analysis between dry shrinkage strain and frost resistance performance was conducted. The results showed that the mechanical performance of cement stabilized aggregate with different cement content showed a linear improving relationship. A higher cement content owns a correspondingly better mechanical performance. With the different moisture content, the dry shrinkage and frost resistance performance of cement stabilized aggregate material showed a similar improving and deteriorating trend. With the increasing moisture content, the dry shrinkage strain and dry shrinkage coefficient were improved and reached to the optimum values, and then started to deteriorate. The optimum dry shrinkage and frost resistance performance were obtained with 6.0% moisture content. The nonlinear relationship between dry shrinkage strain and frost resistance coefficient was gained and the correspondingly optimum dry shrinkage strain and frost resistance was discerned, i.e. 94.3×10-6 and 47.6, respectively. The moisture content significantly influence the pore parameters of prepared samples, whose trend followed those of dry shrinkage and frost resistance performance. The pore size distribution of these composites shifted toward smaller pore size scope with a proper moisture content. In addition, scanning electron micrographs (SEM) showed that the denser microstructure of prepared cement stabilized aggregate materials.

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Section: Dry Shrinkage Testmentioning

confidence: 92%

Dry Shrinkage and Frost Resistance Performance of Cement Stabilized Aggregate Materials

Zhang

2023

AETR

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“…Yang et al established a cumulative plastic strain prediction model by studying the change law of material deformation and strength characteristics of heavy railway subgrade graded crushed stone under cyclic loading [ 10 ]. Cui et al studied the mechanical properties of cement-graded crushed stone with a dense skeleton structure, and the results showed that a higher cement content led to better mechanical properties [ 11 ]. Chen et al optimised the parameters of the graded crushed stone transition layer based on mechanical response and strength standards [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

Research on Mechanical Properties and Influencing Factors of Cement-Graded Crushed Stone Using Vertical Vibration Compaction

et al. 2022

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To study the mechanical properties of cement-graded crushed stone for use in the transition sections of intercity railways, the growth laws governing unconfined compressive strength, splitting strength and resilience modulus of cement-graded crushed stone and their influencing factors were studied by the vertical vibration compaction method (VVCM). The strength growth equations of cement-graded crushed stone are proposed, and strength prediction equations are established. The research shows the unconfined compressive strength, splitting strength and resilience modulus of cement-graded crushed stone with a strong interlocked skeleton density type (VGM-30) are significantly enhanced to 20, 20 and 17% higher, respectively, than those of standard cement-graded crushed stone. The growth law of mechanical properties of cement-graded crushed stone is similar, with the fastest growth occurring before 14 days, and the rate decreasing after 28 days. The strength growth tended to be stable after 90 days, increasing with the increase in curing time, compaction coefficient and cement dosage. The correlation coefficients (R2) of the strength growth prediction models were found to be 0.99, 0.97, and 0.99, respectively. These values can be used to accurately predict the strength growth curve. This paper verifies the superiority of VGM-30 gradation through laboratory tests, providing a reference for gradation selection in the construction of intercity railway transition sections.

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Research on mechanical performance and micro-structural characteristics for large graded aggregates

Yuan

Zhang

Ren

et al. 2022

Construction and Building Materials

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Dry Shrinkage and Durability Performance of Cement Stabilized Graded Stone with Framework and Dense Structure

Cited by 3 publications

References 7 publications

Dry Shrinkage and Frost Resistance Performance of Cement Stabilized Aggregate Materials

Dry Shrinkage and Frost Resistance Performance of Cement Stabilized Aggregate Materials

Research on Mechanical Properties and Influencing Factors of Cement-Graded Crushed Stone Using Vertical Vibration Compaction

Research on mechanical performance and micro-structural characteristics for large graded aggregates

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