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ST9302-CS001201December 1, 2000 Mr. Cecil Peek, Paving Supt. Ed Bell Construction P.O. Box 540787 Dallas, Texas 75354-0787 RE: Sandy Lake Road, ST93-02 TECH1 TECH2 INSPB SEC1 DATE Cecil: The purpose of this correspondence is to document a couple of concerns relative to the captioned project for you review and action. As are aware, the west bound portion of the recently paved section from Moore to Denton Tap has been deteriorating at an accelerating rate since shortly after it's completion. The City of Coppell is currently having this section analyzed to determine the severity and extent of the damage. We know that clay balls are the problem, but until recently we didn't know for sure how they got into the mix. After your plant site was reopened it was apparent that your old stock piles are contaminated. I met at that site with Buddy Stevens and your plant operator prior to resuming paving operations to advise them not to use any of the old sand or rock. The sand was moved away but the rock remains. I have gone back on two occasions to verify that only the new material is being used. As Paving Supt. I want you to be aware of this and to also follow up to insure that the contaminated stockpiles are not used. Yesterday, November 30, as you know, the paving machine broke down. The paving crew was subsequently moved to the intersection of Mockingbird. Four trucks of concrete batched for machine pour was placed in the intersection where it was hand finished. The machine poured concrete is 5 1/2 sk. mix. 6 sk. mix is specified for the hand pours. Additionally, some additive was placed into the placer hopper as the trucks were being unloaded. I want to know exactly what was added to the mix and what documentation you have in the way of specifications that can justify it's use. At this time this concrete is unacceptable. Do not include it on the monthly estimate until it is accepted. 255 PARKWAY ~r P.O.BOX 478 'A' COPP£LL TX 7~019 ~r TEL 972/4.62 0022 ~lr FAX 972/304 3673 December 1, 2000 Mr. Cecil Peck, Paving Supt. Ed Bell Construction P.O. Box 540787 Dallas, Texas 75354-0787 RE: Sandy lake Road, ST93-02 Cecil: The purpose of this correspondence is to document a couple of concerns relative to the captioned project for you review and action. As are aware, the west bound portion of the recently paved section from Moore to Denton Tap has been deteriorating at an accelerating rate since shortly after it's completion. The City of Coppell is currently having this section analyzed to determine the severity and extent of the damage. We know that clay balls are the problem, but until recently we didn't know for sure how they got into the mix. After your plant site was reopened it was apparent that your old stock piles are contaminated. I met at that site with Buddy Stevens and your plant operator prior to resuming paving operations to advise them not to use any of the old sand or rock. The sand was moved away but the rock remains. I have gone back on two occasions to verify that only the new material is being used. As Paving Supt. I want you to be aware of this and to also follow up to insure that the contaminated stockpiles are not used. Yesterday, November 30, as you know, the paving machine broke down. The paving crew was subsequently moved to the intersection of Mockingbird. Four trucks of concrete batched for machine pour was placed in the intersection where it was hand finished. The machine poured concrete is 5 1/2 sk. mix. 6 sk. mix is specified for the hand pours. Additionally, some additive was placed into the placer hopper as the trucks were being unloaded. I want to know exactly what was added to the mix and what documentation you have in the way of specifications that can justify it's use. At this time this concrete is unacceptable. Do not include it on the monthly estimate until it is accepted. 255 PARKWAY * P.O.BOX 478 'A' COPPELL TX 75019 'A' TEL 972/462 0022 ~r FAX 9'72/304 3673 Lastly, no tickets are being generated at the batch plant. That's not a problem except in an unexpected event such as yesterday. I have no way to check the time that the trucks are loaded. I don't need mix design, yards, additives and such. But, I do need something signed by the plant operator that shows the time concrete is place in the trucks. Your cooperation is appreciated. Please respond at your earliest convenience. Sincerely, Construction Inspector cc: Mike Martin, Asst. City Engineer Steven Priddy, President, Ed Bell Const.