Limitations of the slump test. The slump test is suitable for slumps of medium to low workability, slump in the range of 5 â 260 mm, the test fails to determine the difference in workability in stiff mixes which have zero slump, or for wet mixes that give a collapse slump. It is limited to concrete formed of aggregates of less than 38 mm (1.5 inch).
Plantar warts are caused by an infection with the human papillomavirus (HPV) in the outer layer of skin on the sole of your feet. There are more than 100 types of HPV, but only a few types are known to cause warts on your feet.lantar warts are caused by an infection with the human papillomavirus (HPV) in the outer layer of skin on the sole of your feet. There are more than 100 types of HPV, but only a few types are known to cause warts on your feet.
The human papillomavirus (HPV) strains that are most often the cause of plantar warts are type 1 & 2 HPV. These strains are contagious and are spread from person to person via direct contact with the virus.The HPV that causes plantar warts thrives in warm, moist environments such as shower rooms and summer pool decks.lantar warts. Sometimes painful and very ugly, plantar warts appear as small lesions on the sole of the foot, and occasionally the toes. In their early stages they look like small black puncture marks, but as they grow they turn brown and take on a cauliflower-like appearance.