## 4 Conclusions  
This study explores the various concrete properties of using mineral admixture to replace cement and mixing lightweight aggregate. The ratio is designed to use lightweight coarse and fine aggregates (particle density 1660 kg/m\({}^{3}\)), fixed water-binder ratio 0.40, mineral admixture. There are four types of materials: fly ash (FA), blast furnace slag (BFS), desulphurization slag (DLS), and glass powder (GLP), and they replace 10% and 30% of cement weight respectively. After various experiments and analysis results, the following conclusions are obtained:  
1. After adding various mineral admixtures, the slump was still above 75 mm. Some hydrated mineral admixtures may have increased the paste viscosity and thus undermined the slump; however, all samples complied with the designed slump of 75 mm-100 mm. Figure 15: The application efficiency and the economic ratio of MLAC. \begin{table}
\begin{tabular}{c c c c c c c} \hline \multirow{2}{*}{**W/C**} & \multirow{2}{*}{**W/B**} & \multicolumn{2}{c}{**The Ratio of Mineral Admixtures Content (kg/m\({}^{3}\))**} & \multirow{2}{*}{\begin{tabular}{c} **Cement** \\ **Admixtures** \\ \end{tabular} } & \multirow{2}{*}{\begin{tabular}{c} **Mineral** \\ **Admixtures** \\ \end{tabular} } & \multirow{2}{*}{\begin{tabular}{c} **Reduced** \\ **CO\({}_{2}\)** \\ **Emission** \\ **(ton/m\({}^{3}\))** \\ \end{tabular} } & \multirow{2}{*}{\
\begin{tabular}{c} **Reduced** \\ **CO\({}_{2}\)** \\ **(\%/per m\({}^{3}\)** \\ **con.)** \\ \end{tabular} } & \multirow{2}{*}{
\begin{tabular}{c} **Reduced Ratio of** \\ **CO\({}_{2}\)** \\ **(\%/per m\({}^{3}\)** \\ **con.)** \\ \end{tabular} } \\ \hline
0.40 & 0.40 & 0 & 540 & 0 & — & — \\
0.44 & 0.40 & 10 & 486 & 54 & 0.0459 & 11.1 \\
0.57 & 0.40 & 30 & 378 & 162 & 0.1377 & 42.9 \\ \hline \end{tabular}
\end{table} 
Table 9: The benefit of MLAC to the reduction of CO\({}_{2}\) emission. 2. The compressive strengths of FA10, BFS30, DLS30, and GLP30 at 28d were lower than that of the controlled sample (MA0), at 91%, 98%, 86%, and 95% of that of MAO, respectively. The compressive strengths of FA30, BFS10, DLS10, and GLP10 were higher than that of the controlled sample, at 105%, 100%, 104%, and 113% of that of MA0, respectively. It shows that the strength of lightweight aggregate concrete varies with the types and properties of mineral admixtures and the amount of addition. 3. The addition of fly ash, slag, and glass powder contributes to resistivity; FA30 has the highest resistivity, which is 455% of the control group at the age of 120 days; GLP30 takes second place, 377% of the control group, because the two admixtures consume a lot of cement hydration product CH\({}^{-}\), changing the ion concentration in concrete. The main reason is that these two admixtures consume a large amount of cement hydration product CH\({}^{-}\) and change the internal ion concentration of concrete. 4. At 7 d, samples with 30% mineral admixtures had significantly lower reactivity indices, and their compressive strengths were also lower than those of samples with 10% mineral admixtures. After 28 d, except for FA10, pozzolan reactivity indices of samples with 30% mixture ratios were higher than those of samples with 10% mixture ratios, indicating that the strength is improved at later ages. 5. Adding mineral admixtures to lightweight aggregate concrete could decrease the thermal conductivity K value by about 0.4-25.7%. FA30 exhibited the optimum heat insulation, which was 79.5% of that of the controlled sample, followed by GLP10, GLP30, and DLS10 (82%). FA10, BFS10, and BFS30 showed no significant effects, indicating that the mineral admixture hydration product properties have a significant effect on the thermal conductivity of lightweight aggregate concrete. 6. MA0 have the highest unit weight and thermal conductivity, and FA30 was the lowest of both but had unit weight and thermal conductivity with a slight correlation of R\({}^{2}\) = 0.4732.