Analysis of changes in volume and propagation of cracks in expansive soil due to changes in water content

Abstract

IML. Analysis of changes in volume and propagation of cracks in expansive soil due to changes in water content. Rev Bras Cienc Solo. 2020;44:e0190169.

Investigation of the Structural Strength of Expansive Soil in a Seasonally Frozen Region

“…and . of the Type I sample are smaller than those of the Type II sample [29]. Similarly, the expansion of the soil particles at a higher water content fills the fractures, the deterioration of fractures on .…”

“…Thus, the advantage produced by structural strength is less than the disadvantage caused by primary fractures, which causes the S t.qu of the samples of Types I and II to be less than 1. Expansive soil swells with water and shrinks with water loss, which makes the microfractures more developed with a lower water content in the undisturbed samples; as a result, the S t.qu and S t.εu of the Type I sample are smaller than those of the Type II sample [29]. Similarly, the expansion of the soil particles at a higher water content fills the fractures, the deterioration of fractures on q u.u is weakened, and the advantage produced by the structural strength of the undisturbed sample is greater than the disadvantage caused by the primary fractures.…”

Análise do processo de fissuração em um solo expansivo tratado com areia, cal e cinza de casca de arroz

“…Através de um aparato, metodologia proposta por Ferreira et al (2019) e montado no Laboratório de Solos Não Saturados da Universidade Federal de Pernambuco, foi possível monitorar amostras do solo expansivo de Paulista-PE e do solo misturado com areia (50%), cal (5%) e CCA (10%) submetidas à secagem, onde a temperatura e umidade relativa foram monitoradas com o auxílio de um termo higrômetro digital instalado dentro do aparato e próximo as amostras, como também o peso do conjunto (amostra + placa) que foi registrado com uma balança de precisão 0,01 g.…”