Quality control policy
By producing quality products and services that contribute to our customer's success, we also contribute to our success. This statement is the guideline of our policy. The following precepts are form the basis of our quality control procedures. Each of our operations implements a quality assurance program. As market needs change we are always sufficiently flexible to adapt the necessary procedures to assure consistent quality. Our customers rely on our expertise. So we always assist them in the proper use of our products. Every employer contributes either directly or indirectly to the quality of our products. Particularly our quality program aims at satisfying both the ACI and ASTM systems.
Quality control procedures
1. MATERIAL SAMPLING All Samples are identified with at least the following information: Material Source - Date Time Delivery ticket number 1. 1.Cement materials: Routine sampling: 1 kg sample/day/source Or one sample per 100 tons

1.2. Aggregates:
Stockpiles are visually inspected at least once per week for changes in
gradation, color and contamination.
Monthly grading test reports are always obtained
Proper stockpiling procedures are followed to assure excessive
segregation does not take place.
All aggregates are sampled and tested at least once per month.

1.3. Admixtures:
Upon initial installation bottle dispensers are accurately calibrated. A sample of each admixture being delivered is taken. Quality control and admixture suppliers are notified if any changes in color or viscosity are noted in the dispensing bottles upon receipt of new shipment. Lignin based super plasticizers and admixtures which separated are agitated at least once per month

1.4. Mixing Water
Quality control manager ensure that mixing water is tested for acceptance after
any changes in supply or at least once per year.

2. PLANT SETUP AND EQUIPMENT

2.1. Calibration of batching plant scales Weigh scales for seasonal operations are certified at start up. Scales Zeroing is checked daily. Automatic moisture meters are checked for accuracy against actual moisture content. 2.2. Quality control manager ensure that: Central mixers are checked daily and truck mixers at least monthly.

3. MIX DESIGNS

Mix designs are changed with every change of raw material sources.

3. 1. Mix selection: Standardized mix designs established and used wherever possible. Prior to starting a project at least the following determined by reviewing the specifications and contract drawings. 28 days compressive strength Minimum cement content. Classes of exposure. Maximum water/cement ratio. Air content. Specialty cements Admixture. Special aggregate. Excessive haul distance or concrete temperature limitation.

4. CONCRETE PRODUCTION

4.1. Batching Batch sheets in computerized operations show the actual quantities of materials used in the mix Plant management notifies quality control of any noticeable changes in the water demand of the concrete. Mix design is not modified without immediate notification of plant management/quality control. Sufficient moisture test performed to ensure consistent slump and yield before concrete is supplied to site. Concrete must be mixed to a sufficient mixing time.

4.2. Slump
Plant management and quality control: Require drivers to report slump loss occurring between the plant and project. Ensure that drivers report any excessive slump losses or increases in water demand through the placement. In case of late delivery due to traffic or any delay that could occur on site the drivers are trained to estimate slump and to adjust slump accordingly by using the adequate admixture after the consultant's approval to adjust the slump at site.

4.3. Strength:
A set of 6 samples of each class of concrete is taken at least weekly in house and
stored in thermostatically control water tank to be tested on 7 and 28 days age.
The results are plotted in quality control record log.

Third Party Assistance

Third party laboratories assistance is provided by ACTS Laboratories Third party equipment assistance for calibration is provided by ACTS or Gemalab.