This paper presents the effect of curing environment on unconfined compressive strength soil-cement samples and in finding optimum output mix ratio estimating silica fume admixture. work is based data from Cai Mep-Thi Vai inter-port road project results laboratory experiments. The show that specimens with highest were cured soil, lowered city water NaCl 2.5% then 5%. admixture equals to 1% (in ...

Knowledge of the physical properties rock masses is fundamental for economics and safety mining projects. The determination these in samples laboratory requires time, expensive equipment qualified personnel, which considerably increases information's cost. Indirect methods were developed to obtain related masses, have been shown be a viable alternative traditional procedures. compressional mech...

High price of land and importance modern construction has imposed the need to strengthen weak clay soils. The stabilization these soils been conducted using various additives. Due its low cost, availability, positive impact on resistance, lime traditionally applied for stabilisation poor sensitive types In this research, powder, added in percentages 0, 2, 4, 8 16 dry soil weight, was mixed with...

an understanding of the strength of rice grains as affected by moisture content and temperature is important for analysis and prediction of cracking and/or breakage behavior during handling and processing. further, the magnitude of these properties at various moisture contents and temperatures is needed for the accurate design of milling machinery so that grain damage is minimized. to determine...

Abstract This study investigates the effect of replacement recycled concrete as coarse aggregates using Densified Mixture Design Algorithm Method (DMDA) in unconfined behavior. DMDA was applied to produce with least void. Compressive strength, flexural strength and split tensile tests were conducted on 7-, 14-, 28- 56-day old specimens. test results showed that specimens 20, 30, 40% RCA replace...

pervious concrete is a concrete mixture prepared from cement, aggregates, water, little or no fines, and in some cases admixtures. the hydrological property of pervious concrete is the primary reason for its reappearance in construction. much research has been conducted on plain concrete, but little attention has been paid to porous concrete, particularly to the analytical prediction modeling o...

There are a large number of high liquid limit soil distributed in southern China. As one of the special soils commonly seen in highway construction, high liquid limit soil cannot be used in subgrade filling directly due to its special engineering properties. With the idea of saving engineering investment and protecting environment, high liquid limit soil must be improved to be qualified subgrad...

This paper presents an experimental investigation of the mechanical properties rubberised concrete confined with basalt-fibre textile-reinforced mortar (TRM) jackets. The main aim is to evaluate effectiveness TRM confinement scheme on cylindrical specimens by examining five different mixtures (rubber content ranging from 10.5% up 42% total aggregate volume), including a plain reference mixture....

Stabilized dredged sediments are used as a backfilling material to reduce construction costs and solution environmental protection. Therefore, the compressive strength is an important criterion determine stabilized application such road construction, building highway construction. Using traditional method empirical approach experimental methods, determination of difficult due complexity this co...

the effects of adding nano-silica particles on the compressive strength and water permeability of concrete and its comparison with that of micro-silica were investigated in this work. the effect of combination of nano- silica and micro-silica were also studied in this work, which resulted in an increase in compressive strength of concrete in comparison with other concrete specimens tested in th...