**3. Concrete hydration thermal control research data result**

Based on the above mentioned sequences method of research, the following output data found.

### **3.1 Bioconc low heat concrete Fc'25, with cement binder content reduction R = 40% research data result**

The Mock Up Bioconc Treatment Low Heat Concrete with cement binder content reduction R = 40% to control concrete hydration thermal, on mass concrete modeling 1000 × 1000 × 2500 mm3 , Graph thermocouple monitoring output data, figured on the following graph (**Figure 19**).

#### **3.2 Fc'25 + concrete Fly-ash 20% + 4 pcs ice block/m3 concrete research data result**

The Mock Up of Fc'25 + FA20% + 4pcs Ice Block to control concrete hydration heat, on mass concrete modeling 1000 × 1000 × 2500 mm3 , Graph thermocouple monitoring output data, figured on the following graph (**Figure 20**).

**Figure 12.** *Bioconc LHC mixing plant.*

**Figure 13.** *Slump test.*

**Figure 14.** *Bioconc LHC concreting.*

**Figure 15.** *Bioconc product packing.*

**Figure 16.** *Fc'25 + FA40% LHC & Fc'25 + ice.*

### **3.3 Fc'25 + concrete Fly-ash 40% low heat concrete research data result**

The Mock Up of Fc'25 + FA40% Low Heat Concrete to control concrete hydration heat, on mass concrete modeling 1000 × 1000 × 2500 mm3 , Graph thermocouple monitoring output data, figured on the following graph (**Figure 21**).

### **4. Engineering discussion**

Mainly concern of mass concrete Quality Control is on the Hydration Thermal Control, as the above mentioned research data result (item 3.1, 3.2 and 3.3) can be summarized as following **Table 2**:

**Figure 17.** *Bioconc LHC mock up.*

**Figure 18.** *Bioconc LHC mock up thermocouple monitoring.*

**Figure 19.** *Thermocouple Bioconc-LHC monitoring, Summary data & mock up sketch.*

Based on **Table 2**, Bioconc Treatment Low Heat Concrete the faster method to reach the peak time on 29.5 hours from concrete pouring. On construction process, its mean cost advantage, since faster the peak temperature of mass concrete occurred, faster the next step of construction can be execute, also cheaper overhead cost in maintaining the mass concrete, such as rent of mass concrete tends, curing, etc.

Secondly concern of mass concrete Quality Control is on the concrete strength is the concrete cylindrical samples strength test as describe on **Figure 6**, shown that various Concrete Strength Tests are match to the specified.
