JT-ZX series concrete water reducer

I. Product Introduction

This series of water reducers are liquid products mainly composed of organic alkanolamine substances, with auxiliary functional admixtures. They are generally brownish-transparent, odorless, and do not harm human health or concrete workability.

1. Specifications: 250 kg/barrel, 1 ton/barrel, and bulk packaging.

2. Density (20℃): 1.01±0.03g/cm³

3. PH value (20℃): 9.0±1.0

4. Chloride ion content: ≤0.1%

5. Alkali content: ≤1.0%

6. Suitable Dosage: 0.5-0.6% of the total mass of cementitious materials. The optimal dosage should be determined through trial mixing.

II. Scope of Application and Usage Effects:

1. Scope of Application: Mainly applicable to concrete mixing plants, pipe pile enterprises, component enterprises, railway and water conservancy projects, etc.

2. Usage Effects:

(1) When adding 0.5-0.6% of this enhancer (based on the total mass of cementitious materials) without changing the concrete mix ratio, the 7-day compressive strength of the concrete can be increased by 3-5 MPa and the 28-day compressive strength by 3-8 MPa. At the same time, the workability of the concrete is significantly improved;

(2) While maintaining the same concrete strength, workability, and water-cement ratio, the cement content can be reduced by 10-20%. This ensures the comprehensive performance and strength of the concrete while significantly increasing the slurry volume and improving the rheological properties of the concrete.

III. Usage Method

1. Dosage: 0.5-0.6% of the total mass of cementitious materials. The optimal dosage should be determined through trial mixing;

2. Specific Method: When no height increase is needed for addition, a metering pump can be directly used for metering and addition;

When it is necessary to increase the feeding height of the enhancer, a two-stage pumping method is generally used for addition. The schematic diagram is as follows:

For companies using our water reducer, we provide customers with storage tanks, related metering devices, and methods for detecting and controlling the feeding amount.

III. Usage Examples

1. Trial mixing test results from S mixing plant in Nanning City, Guangxi

Test No.	Concrete Design Grade	Cement kg/m³	Mineral Powder kg/m³	Fly Ash kg/m³	River Sand kg/m³	Stone kg/m³	Water kg/m³	Admixture kg/m³	Enhancer kg/m³	Slump at Discharge/mm	Spread at Discharge/mm	Slump after 1 Hour/mm	Spread after 1 Hour/mm	7-Day Compressive Strength/MPa	28-Day Compressive Strength/MPa
ZS-1	C30	180	80	85	880	1010	162	9.66	0	205	490	190	410	29.0	42.6
ZS-2	C30	180	80	85	880	1010	162	9.66	2.0	225	606	190	535	33.4	48.5

Note: All raw materials were provided by the mixing plant. The enhancer dosage was 0.6% of the total mass of cementitious materials, and the concrete mix ratio was not adjusted.

2. Industrial trial mixing test results from X mixing plant in Nanning City, Guangxi Province

Test No.	Concrete Design Grade	Cement kg/m³	Fly Ash kg/m³	River Sand kg/m³	Manufactured Sand kg/m³	Stone kg/m³	Water kg/m³	Admixture kg/m³	Enhancer kg/m³	Slump at Discharge/mm	Spread at Discharge/mm	Slump after 1 Hour/mm	Spread after 1 Hour/mm	7-Day Compressive Strength/MPa	28-Day Compressive Strength/MPa
ZS-1	C30	275	60	450	479	960	158	8.0	0	195	550	195	415	30.4	37.8
ZS-2	C30	250	60	460	489	960	146	8.0	1.86	205	585	195	535	32.4	40.8

Note: All raw materials were provided by the mixing plant. The enhancer dosage was 0.6% of the total mass of cementitious materials, the cement content was reduced by 25kg, and the water-cement ratio remained unchanged.

V. Economic Benefit Calculation

Using this enhancer, while ensuring the workability and compressive strength of the concrete remain unchanged, the cement consumption can be reduced by 10-20%, with the same amount of manufactured sand or river sand, fly ash, etc., used as a supplement.

Direct Economic Benefit = Cement Price × Cement Savings - Enhancer Price × Enhancer Usage - Manufactured Sand Price × Manufactured Sand Increase + Admixture Price × Admixture Savings

VI. Usage Characteristics:

1. Improves the workability of fresh concrete, improves workability, and reduces bleeding;

2. Increases the density of concrete, improves impermeability, and reduces cracks in concrete;

3. Improves the freeze-thaw resistance and carbonation resistance of concrete;

4. This product is non-toxic and harmless, with zero emissions during production, and is a green and environmentally friendly building material.

VII. Precautions

1. Before use, first check the company's logo according to the factory inspection report and label to confirm that the product and model are correct before use;

2. When further verifying product performance, the following methods can be used:

3. Consistency acceptance: Under the same temperature conditions, the density, PH, and solid content of the newly arrived enhancer and the qualified retained sample of the used enhancer are tested. When the difference in density is ±0.02, the difference in PH value is ±0.6, and the difference in solid content is ±2%, it is considered qualified;

4. A mortar compressive strength comparison test should be conducted based on the proportion of cement, fly ash, and mineral powder in the total amount of cementitious materials in a certain type of labeled concrete mix. During the test, both newly introduced and previously qualified efficiency enhancers are added separately. When the 7-day compressive strength of the mortar containing both types of efficiency enhancers is within the allowable ±5% error range, the newly introduced efficiency enhancer is considered qualified.

5. It is recommended to use the first method when using the efficiency enhancer continuously. When there is a significant difference in the quality of the efficiency enhancer, the second method should be used.

6. During handling and storage, this efficiency enhancer should be protected from dropping, impact, external force compression, and high temperatures. The stacking height should not exceed two barrels.

7. This product has mild corrosive properties to the skin. In case of skin contact, rinse with clean water immediately. Do not ingest.

8. This product can be added simultaneously with a water reducer.

9. Shelf life: 6 months.