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.
Plantar Warts: Cause. Warts are caused by a viral infection. The virus penetrates through the skin and may often enter through traumatized or damaged skin or areas that are under repetitive stress.he virus that causes warts is the Human Papilloma Virus (HPV) of which more than 100 types exist. The subtypes of HPV most often associated with plantar warts are: 1,2,4,27 and 57. The HPV (Wart Virus) is spread by direct contact. Quite often a moist area that has skin residue is an area at risk for spreading warts.