洪堡’s line of unconfined soil testers allow for quick and accurate determinations of unconfined compressive strength of cohesive 土壤 in intact, remolded or reconstituted condition in the field or lab. They can be used with cohesive materials, which will not bleed water during deformation or compaction testing and retain their intrinsic strength after removal from 加载 pressures, such as clay or cemented 土壤. 相反, 土壤, 哪些是干的易碎的, 比如泥炭, silts and sands cannot be tested with these testers. These load testers provide an approximate value of the strength of cohesive 土壤 in terms of total stresses as per ASTM D2166.
The 洪堡 unconfined soil testers provide and inexpensive method to quickly obtain a measure of compressive strength for those 土壤 that possess sufficient cohesion to permit testing in the unconfined state. They are ideal f或使用 by consultants, universities and DOTs where a quick, economical test setup is desired.
They are perfect for field labs where space constraints and desire for a low-cost alternative to a load frame is needed. They are also perfect for operations, which require multiple units, but are constrained by low budgets or where existing load frames are dedicated to CBR and the 洪堡 testers would suffice for quick, 无侧限土试验.
The light and compact design of these testers provide great portability for everyday field use. These digital models feature a quality digital indicator, which provides readings to 1.0磅精度. They can be used for on-site, pile tonnage or foundation bearing capacity estimates. All of these testers are sturdily made of light and durable aluminum and feature a geared, 手轮装载系统. All include a load ring and platen.
The digital h - 4180双相障碍 Tester is designed to be a replacement for the now defunct “Rimac” tester, which are used extensively by the Illinois DOT. It provides a daylight opening between platens of 5.125" perfect for split spoon samples. This model provides up to 300 lb. (1.33kN) load capacities and an adjustable height scale for determining vertical travel.
The digital h - 4180广告 and h - 4180 dd provide a daylight opening between platens of 6.375", perfect f或使用 with 6" Shelby tube samples or samples cut down from larger Shelby tubes.
The h - 4180广告 provides 500 lbs. (2.22kN) load capacity and an adjustable height scale for determining vertical travel.
The h - 4180 dd provides 1000 lbs. (4.45kN) load capacity and features a dial indicator for determining vertical travel.
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