Does sand have low porosity

Answer 1

Different shales have different porosity. In comparison to other sedimentary rocks, such as sand stone, it has a very low porosity. However, in comparison to crystalline rocks, it would have a relatively high porosity.

Answer 2

Yes because its grains are very large and there are a lot of large pore spaces but not as many space pore spaces, so in a unit of sand the fraction of soil volume that consists of holes is a lot less then a soil such as clay that is made up of a lot of small particles with a lot of small pore spaces

Answer 3

The Porosity of concrete is the microscopic pour which allows the the concrete to breathe in a sense. It can draw in any form of moisture when left unsealed. Concrete can be sealed in many different forms. Solvent based resins are the best form of sealant. Basically the resin is dilluted usually using a xylene based solvent. An average hard wearing decorative sealer (with 'hardwearing' properties advertised) contains around 20-30% resins. Basically at this dillution (viscosity) the product can be applied evenly applied using a specifically designed pressure sprayer with brass fittings and seals to stand the test of the solvents or simply applie with a paint brush or 15-20mm nap roller a decent quality roller will usually give 200 metres sqaured. When the sealant is applied the solvent evaporates into the atmosphere yet also drawn in by the porosity of the cement / concrete. Leaving the concretes surface sealed from water, mould stains oil and fuel. the sealant will readhere to previous coats leaving a lasting seal.

Answer 4

its how much water the soil can absorb

Answer 5

Porosity is the quality of being full of tiny holes so that water or air can get through. The porosity of sand is 0.25 - 0.50.