A crucial role play the amount of water contained in the concrete, capable of being frozen, as well as the volume and distribution of
air pores. Assuring the proper freeze resistance involves the provision of maximal water-tightness, i.e., an impermeable structure free from water capable of being frozen, and producing an appropriate system of
air pores not able to be completely filled with water, which, at the same time, will contribute to an improvement in the thermal properties of the material.
The use of fractal geometry for the assessment of the diversification of Macro-Pores in concrete
"The soil has
air pores and volume space," said Falder.
Raising bar on green roofs
Ryegrass seedling weights were significantly greater in non-poached compared with poached treatments, while the content of
air pores >60Bm in the top 40mm of soil was 10.8% in the non-poached and 2% in the poached treatment.
Pasture yield and soil physical property responses to soil compaction from treading and grazing--review
Inside these tiny homes, rhizobia draw nitrogen from
air pores in the soil and chemically convert it to a form that the plant can absorb.
Rhizobial magic
The voids include gel pores, microcapillaries, macrocapillaries, and artificial
air pores [15, 16].
Models for Strength Prediction of High-Porosity Cast-In-Situ Foamed Concrete
The presence of
air pores in the honeycomb film can improve the roughness of the surface.
Patterned honeycomb structural films with fluorescent and hydrophobic properties
Both the porosity characteristics (Table 3) as well as fractures of concrete samples with asphalt show that in the case of the typical vibratory consolidation large
air pores are confined in the structure of concrete.
Influence of asphalt addition and consolidation method on the durability of cement concrete/Asfalto priedu ir konsolidacijos metodo itaka cementbetonio ilgaamziskumui
The higher W/S ratio makes the consistency of the slurry and foaming resistance lower, which led to a large number of
air pores left in the samples and the high porosity obtained.
Preparation of Porous Materials by Magnesium Phosphate Cement with High Permeability
(2006), the type of a superplasticizer is crucial on account of the size and proportions of
air pores participation, obtained as a result of its functioning, although the time of hardening of concrete does make a difference to further changes of these proportions (Fig.
Air-entrainment problem in self-compacting concrete/Oro isiurbimo i savaime tankejanti betona problema
Porous coal rock (Figure 1(a)) is characterized by a pore structure of
air pores and mold pores and similar structures (Figure 1(b)), which can provide space for free methane and adsorbed methane (Figure 1(c)) [16-18].
A Fluid-Solid Coupling Mathematical Model of Methane Driven by Water in Porous Coal
During the freezing-thawing action, cracks originated at the interface between the paste and aggregates and may go through the
air pores, leading to the coalescing of two (or more) separated air voids.
Investigation of Microstructural Damage in Ultrahigh-Performance Concrete under Freezing-Thawing Action
The parameter provides information on the pattern of arrangement of the various particulates as well as
air pores within a tablet.
Non-invasive screening method reveals important properties of pharmaceutical tablets
When soils become saturated, gas diffusion and exchange between the soil and the atmosphere is hindered because the
air pores are filled with water.
ALARMING THREAT IN ORCHARDS - OVER-IRRIGATION