Structural Design and Dynamic Characteristics of Overloaded Horizontal Servo Cylinder for Resisting Dynamic Partial Load

Ma, Lifeng; Huang, Qingxue; Ma, Lifeng; Ma, Qi; Zhang, Wenze; Han, Honggui

doi:10.1186/s10033-019-0326-x

Cited by 2 publications

(1 citation statement)

References 11 publications

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“…The fine particles of the composite cement reinforcement composed of OPC and UFC gradually increased with the UFC proportion, and the mass percentage of cement particles smaller than 32 µm gradually increased. The hydration products increase continuously with the progress of the hydration reaction, and the hydration products gradually fill the through pores to The cemented soil strength is affected by porosity and pore size distribution [34,35]. The speed of generating hydration products is weakened with a UFC proportion of more than 10%.…”

Section: Influence Of Ufc Proportion On Cemented Soilmentioning

confidence: 99%

Effect of Ultra-Fine Cement on the Strength and Microstructure of Humic Acid Containing Cemented Soil

et al. 2023

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The peat soil in the Dianchi Lake area of Yunnan, China, is widely distributed, bringing many problems to engineering. The peat soil foundation is usually treated by the cement mixing method, and the reinforcement effect of cemented soil is mainly affected by humic acid (HA). Ultra-fine cement (UFC) can improve cement performance and reduce cement consumption, decreasing CO2 emissions and the impact of human activities on the environment. Simulated peat soils in different environments are prepared with HA reagent and cohesive soil, reinforced by composite cement curing agent mixed with ultrafine cement (UFC). The relationship among the UFC proportion, HA reagent content, soaking time, and sample strength was studied. The unconfined compressive strength test (UCS), scanning electron microscope (SEM), and PCAS microscopic quantitative test techniques were used to explore the mechanism of the effect of UFC on the strength of HA-containing cemented soil. The increasing UFC proportion in the composite cement curing agent gradually increased HA-containing cemented soil’s strength. UFC significantly reduced the percentage of macropores in HA-containing cemented soil and made the microstructure denser. The HA-containing cemented soil’s qu increased the most when the UFC proportion increased from 0% to 10%. The solidification effect of the composite cement curing agent mixed with UFC was always stronger than that of OPC. The composite cement curing agent with a UFC proportion of 10% is practical. Cement is still an important building material in the current construction industry, and UFC provides a new method for reducing environmental impact in engineering construction.

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Section: Influence Of Ufc Proportion On Cemented Soilmentioning

confidence: 99%