The scarcity of road materials that can be used directly in the sub-base layer a without preparation has led to use non-conventional materials. This study describes feasibility using hydrated lime-treated cubitermes sp termite mound soils for construction, based on laboratory tests. Tests Atterberg limits, dry density, CBR, compressive strength, static modulus and measurement sinking material u...

This study investigates the combined efficacy of waste-tire-derived aggregate (TDA) materials and hydrated lime on compactability, compressive strength swelling potential a highly expansive soil from South Australia. A total 21 mix-designs, covering comprehensive range soil–TDA–lime combinations, were examined through standard Proctor compaction, unconfined (UCS) oedometer swell tests. The mobi...

Modelling the lime requirement (LR) is a fast and efficient way to determine amount of required obtain pH that can overcome adverse effects caused by soil acidification. This study aimed model LR based on properties lime. A total 17 acidic soils 39 samples underwent soil–lime incubation in laboratory. The predictive equations for (t ha−1) were modelled using ∆pH (the difference between target i...

The yellow-layer soils of the Guabirotuba formation in Brazil are problematic due to their expansive nature and low-bearing capacity. There has been little exploration into stabilizing these using a calcium-based binder. In addition, existing methods for dosing lime fine coarse-grained porosity-to-lime index (η/Liv) have primarily focused on non-optimal compaction conditions determine split ten...

Acidity is released in high amounts when pyrite-bearing sediments in the coastal plains of Malaysia are drained for development, either agriculture or otherwise. The soils formed from these materials are called acid sulphate soils, which are characterized by low pH and high exchangeable Al that adversely affect plant growth. A study was conducted with the objective of increasing rice yields on ...

Earlier studies have demonstrated the beneficial effects of adding Ordinary Portland Cement (OPC) to bitumen emulsion mixtures. These effects were confirmed for some dense graded mixtures based on recipes currently used for hot mix in the UK and being considered for use in cold mix. Laboratory tests included stiffness modulus, resistance to permanent deformation and resistance to fatigue cracki...

Organic compounds, often used in cement systems as admixtures, may affect the crystallisation and carbonation kinetics of Ca(OH)2, an important phase hydrated cement. Here, we investigated changes Ca(OH)2 morphology presence 3 organic commonly encountered lime-based materials: sucrose, pectin calcium lignosulfonate. The additives were introduced either before or after lime slaking to determine ...

Aiming at the problems of weak acidity medium weathered igneous rock around Nairobi, Kenya, poor adhesion with asphalt and water stability binder, article studied use anti-stripping agent, cement, hydrated Lime other technical measures to improve binder rock. The results showed that 48h Marshall residual benchmark without any was 78.5%, which did not meet standard requirements. can be significa...