In this paper, a study of environmental effects on the deformation and smoothness behavior of jointed plain concrete pavement ( JPCP) during its early age is presented. A newly constructed JPCP on US-34 near Burlington, Iowa, was instrumented and monitored during the critical time immediately following construction to identify its early-age behavior regarding temperature variations. The surface...

Rapid locomotion in the aquatic larvae and pupae of the phantom midge Chaoborus crystallinus was analysed. A 10-mm long larva moved sporadically by rapidly curling into a tight circle and then unfurling. The most common movement (70% of all movements) was a body rotation of 332±22 deg (mean ± s.d.) that lasted 63±19 ms and reached a peak velocity of 0.07±0.02 m s(-1). If the head unfurled earli...

Hairs varying from 6 to I2 in. in length were obtained mostly from women and in some cases from Sikh male members of the department. The hairs selected, after brittle, coarse, or extremely thin hairs had been discarded, were cleaned with 2 per cent. cetavlon, washed in water, wrapped around rubber tubing about 3 in. long to minimize curling, put into a wide-mouthed bottle, and autoclaved for 20...

Plastic deformation is a permanent that occurs in steel, even though the load causing removed. It widely used to change shape of steel permanently without adding or reducing chemical composition steel. This followed by phase microstructure Several types loading on plastic are Pull (drawing), Stamping and Curling, which plate curve circle.