Lam Lee Add-LR000410April 10, 2000
Capstone American Properties ENGINEERING
10670 N. Central Expressway, Suite 160 & TESTING, INC.
Dallas, Texas 75231
Attn: Mr. Thomas Tsang
Re: Response to Fax from Thomas Tsang
Correspondence of Apdl 3, 2000
Report No.: 00-014.166
PROJECT ACTIVITY REPORT
Soiltech Engineering and Testing, Inc. has completed the changes on the
concrete cylinder test report you requested.
The soil sample on report number 00-014.135 was a proposed select fill
matedal for use at the Lam Lee projecL Upon completing the tes~ng of ~
proposed matedal it was determined this soil did not comply with the project
specifica~ons. This soil sample was tested at the request of the general
contractor. Our client is the owner of the project but all requests for services come
from the general contractor or specific subcontractors. Do you want us to verify
with ~ owner that they will pay for the type of service requested by the contractor
prior to going to the job site?
As for a tremie not being used to place concrete in the pier holes it is not
our derision to make. We are to witness and record what took place on the dates
we were present on site.
A~cording to the vast majority of project specification manuals the testing
laboratory is not authorized to act in place of the contractor. There for it is not our
responsibility to decide on the use of a tremie. ACI states that concrete can be
placed by letling it fall straight down with out the use of a tremie provided it does
not strike reinforcing steel causing segregation on the way down. A tremle was
used in placing concrete in the pier holes where water was encountered. The
concrete contractor at the Lam Lee site used an extra concrete chute hung upside
down off of the mixer/~uck, which fadlitated the concrete dropping ~alt down the
center of the pier holes that does not contain water.
We have provided the services you requested and look forward to a
healthy business relationship in the future.
SOILTECH ENGINEERING & TESTING, INC.
2502 Gravel Drive · Fort Worth, Texas 76118 · 817.595.0064 telephone. 817,589.7279 metro · 817.595.0708 fax