This is a preview. Log in through your library . Abstract Aims Semi-arid cropping regions are commonly affected by surface crusting of sodic soils, resulting in reduced seedling emergence and grain ...

Premature finishing, overworking the surface and inadequate curing are typical causes of surface defects on exterior slabs. Some of these defects include premature wear, scaling, mortar flaking and ...

Delaminations are horizontal separations of the top surface of a floor slab from the underlying concrete. Typically, delaminated thicknesses vary from about 1/8 to 3/8 inches but can be thinner or ...

A neutron star is 2 solar masses compressed into a ball only 12 kilometers wide. Its surface gravity is so immense it compresses atoms and molecules into raw nuclei and squeezes electrons into protons ...