ACI 315-08 PDF

The technical committees responsible for ACI committee reports and standards strive to avoid ambiguities, omissions, and errors in these. Aci 08 Pdf Download. Foo. INTRODUCTION /R-1 ACI Building Code and Commentary PREFACE The code portion of. Section of ACI lists important informational items that must be included on design drawings, details, or specifications, including anchorage length.

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The primary objectives of the present study were: The crop 315-8 was estimated at 15 to 18 inches. Another person cut the plants approximately 10 cm above the soil level with a pair of shears and the first person placed the grass in his hand into a plastic bag. An experiment designed to determine correlations among aerial concentrations and deposition on certain forage materials and on soil for a specific aerosol was conducted.

The back row, 20 meters from the generators, averaged 0. Survey instrument measurements in the controlled area. The data for this assertion are obviously limited and, therefore, for future exercises more soil 3115-08 should be taken and the deposition compared with that on ground level fallout planchets.

This was in agreement 315-088 the effective half-life of 0.

SP-066(04): ACI Detailing Manual-2004

Conclusions “Shine” through the shield is not an important contribution to the count-rate of the scintillator-charcoal-cartridge sampler for I in this experiment.

Iodine in milk following ingestion average of 4 cows fed contaminated fresh green chop – Group IV. The physical data on each are shown in Table Air sample prefilters and fallout trays were counted for gross beta activity by the Beckman System. Figure 36 is a diagram of the Gaseous Sampler. All data were recorded on IBM printout sheets and tally punch tape see Plate 5.

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Plots of the weather, G-M, and scintillator count-rates during the release are included at the end of this section. The monitoring and sampling equipment carried by each team included: This group 2 data were essentially modified mechanically by the xci enlargement time which eliminated a portion of the particles in the smallest range. Measurements of the total combined depositions on growing Sudan grass, spread hay and spread Sudan green chop accounted for The manual mode is useful for trouble-shooting and servicing; normally the system operates automatically avi periodically gathers data from all of its sensors.

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All times are Pacific Daylight time. Results i 3 i 1.

In future studies we plan to raise our aerosol generation nozzles to a higher level and we speculate that, when this is done the 29 to 1 ratio will decrease; i. The average daily intake of I activity was 1. The apparent effective decay half-lives for the 3 I levels in the milk of the different groups of study cows were remarkably similar for the fresh green chop, spread green chop and hay fed cows. During the release the system recorded data from all inputs-at two-minute intervals.

Wind direction and speed during aerosol release. Results Preliminary data indicated that early morning would be the optimum time for an aerosol release.

Discussion A comparison of the results from the two stacks shows a greater deposition of 1 3 1 I on the top layer of the green chop stack. If anything, it had been expected that the Hayseed aerosol would deposit fewer particles less than 5 i in size because of the humid ambient conditions and the presence of a 1 to 5 mph wind.

This method of sampling was selected because it minimized dislodging the dia- tomaceous earth from the plants when sampling.

SP(04): ACI Detailing Manual

Figure 35 is a diagram of the Particulate Sampler. Before each periodic “interrogation” of the sensors, the Master Programmer “gates open” the sealers, which count pulses from the scintillators and G-M tubes for one minute and feed their totals through the Readout Control onto tape as the Programmer demands. For cows in one group an effective decay half- life of 5. Preexercise forecasts were for a one meter high crop and approximately one kg of grass per square meter. The highest l activity 2.

Data for Group III contaminated spread green chop cows. The wind vanes were oriented with the aid of the ESSA personnel and their theodolite. Sample 1 2 1 2 Table 11, Particle Stake 1 2 3 4. Again this statement has assumed equal biological availability for the I on fresh green chop and on hay. Calf History Six calves were used for 31-508 study. No cor- rections were made in the I feed intake values for cross 315–08 in the feed. However, for various reasons we decided for this experiment to utilize a relatively simple synthetic, dry aerosol of diatomaceous earth tagged with l 31I.

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In summary then it may U.

The early morning release, thoughrequired minutes to unload the generators, probably because the higher humidity caused some clumping or an increase in particle weight. Project Hayseed The objectives sought in the deposition studies were to determine if the test criteria had been met, i. The peak thyroid activity occurred seven days after the start of ingestion. The decrease is attributed to physical factors other than radio- active decay. The results from successful studies such as these could be used in the design of a more accurate model for estimating potential dose to humans from radioiodine released to the environment.

Since the particles are in the shapes of flakes and rods, the true aerodynamic sizes are probably 315–08 than that which would be determined by the above factor. There is no basis for an estimate of error adi this system. This evidence substantiates the different milk to grass ratios indicated above.

The group II cows, receiving the contaminated spread hay, secreted 6.

One recommendation for future efforts would be to incor- porate an air drying capability in the aerosol generation apparatus. The wire spacers served as a means of quick identification and collection of samples at the selected sampling depths. These cows were in the milking line and grouped for this experiment as listed in Tables 1 and 2.

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