Phase change materials (PCM) are very potential thermal storage materials. High- strength cement produces a lot of hydration heat when hydrated, it will usually lead to thermal cracks. Finally, the compressive strength decreased with an increase in sand content because of increased material heterogeneity and loss of sand grains from the sides during shearing.Ĭompressive and flexural strength of high strength phase change mortar Conversely, the compressive strength increased with decreasing water content of the material following a similar function. For each material, the compressive strength increased with an increase in density following a power law function. Results indicated that the investigated materials exhibited a brittle behaviour on the dry side of optimum and a ductile behaviour on the wet side of optimum. A natural clay of high plasticity was mixed with 20% and 40% sand (SP and their compaction and strength properties were determined. The main objective of this note was to investigate the compressive strength of compacted clay-sand mixes.

The results of this study were used to determine the linear regression constants in the Maltenfort model by correlating the measured board edgewise compression strength (ECT) with the predicted strength, using the paper components' compression strengths, measured with the short-span compression test (SCT) and theÂ .Ĭompressive Strength of Compacted Clay-Sand Mixesĭirectory of Open Access Journals (Sweden)įull Text Available The use of sand to improve the strength of natural clays provides a viable alternative for civil infrastructure construction involving earthwork. Relationship between the edgewise compression strength of. it depends on whether the cores are drilled parallel. Existing studies show that the core compressive strength is anisotropic i.e. When the load carrying capacity of existing concrete structures is (re-)assessed it is often based on compressive strength of cores drilled out from the structure. Gustenhoff Hansen, SÃ¸ren JÃ¸rgensen, Henrik BrÃ¸ner Hoang, Linh Cao

The linear relationship between compressive strength and flexural strength can be better expressed by the cubic curve model, and the correlation coefficient was 0.842.Īnisotropic Concrete Compressive Strength The compressive strength and flexural strength were linearly fitted by SPSS, six regression models were obtained by linear fitting of compressive strength and flexural strength. On the basis of excluding the abnormal values through boxplot, the results show that, the compressive strength test results were normal, but there were two mild outliers in 7days flexural strength test. To determine the relationship between compressive strength and flexural strength of pavement geopolymer grouting material, 20 groups of geopolymer grouting materials were prepared, the compressive strength and flexural strength were determined by mechanical properties test. The relationship between compressive strength and flexural strength of pavement geopolymer grouting material

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