Question

Problem #4-Pavements (8 Points) Truck A has two single axles. One axle weighs 12,000 lb. and the other weighs 23,000 lb. Truck B has an 8000-lb single axle and a 43,000 lb tandem axle. On a flexible pavement with a 3-inch hot mix asphault (HMA) wearing surface, a 6-inch soil-cement base, and an 8-inch crushed stone subbase, which truck will cause more pavement damage (Assume drainage coefficients are 1.0)? Which truck (same conditions as above) would cause more pavement damage on a rigid pavement with a 10-inch slab?

Answer 1

to eighs 3,000 lb. Tuct B'has an sooo-1b kingle asle and a ut,oolb tanden ax d , on a Jiexble Paveeat oih ainch hot ny akphatt ven data One Single Onle 1ok Second Single dle 2p shich Avock Lo caUSe mo pavenent dorma g e s Using the velaion ab shoun i beloo nod

And dod- a, - o uy a2-090 @g:0. ㅣ ㅣ CALCULATION uaon becomes 3-4 RY INTER POLATION 3 2 209 -u 21-2.09.88 :0.008 1k 3-1 2.17-110.00): 3-2 2.1丬-210,008)ニ SkisEsAL r ehcbying tables

TRUck.A: 12 kip Single Anle二0.322 Total tg-kip cSAL 2.16 l bb TRUC Total 18, kip Σ'sAL 29,753 RESULT TRUCE A LO:11 Cause little Move damagu but bor万damages TUC